The following updates has been released for Ubuntu Linux:

USN-3929-1: Firebird vulnerabilities
USN-3930-1: Linux kernel vulnerabilities
USN-3930-2: Linux kernel (HWE) vulnerabilities
USN-3931-1: Linux kernel vulnerabilities
USN-3931-2: Linux kernel (HWE) vulnerabilities
USN-3932-1: Linux kernel vulnerabilities
USN-3932-2: Linux kernel (Xenial HWE) vulnerabilities
USN-3933-1: Linux kernel vulnerabilities
USN-3933-2: Linux kernel (Trusty HWE) vulnerabilities

USN-3929-1: Firebird vulnerabilities

==========================================================================
Ubuntu Security Notice USN-3929-1
April 02, 2019

firebird2.5 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Firebird.

Software Description:
- firebird2.5: A full-featured, open source SQL database derived from Borland InterBase 6.0

Details:

It was discovered that Firebird incorrectly handled certain malformed
packets. A remote attacker could possibly use this issue with a specially
crafted network packet to cause Firebird to crash, resulting in a denial of
service.
(CVE-2014-9323)

It was discovered that Firebird incorrectly handled certain UDF libraries.
A remote attacker could possibly use this issue to execute arbitrary code.
(CVE-2017-6369)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
firebird2.5-classic 2.5.2.26540.ds4-9ubuntu1.1
firebird2.5-classic-common 2.5.2.26540.ds4-9ubuntu1.1
firebird2.5-server-common 2.5.2.26540.ds4-9ubuntu1.1
firebird2.5-super 2.5.2.26540.ds4-9ubuntu1.1
firebird2.5-superclassic 2.5.2.26540.ds4-9ubuntu1.1
libfbclient2 2.5.2.26540.ds4-9ubuntu1.1
libfbembed2.5 2.5.2.26540.ds4-9ubuntu1.1
libib-util 2.5.2.26540.ds4-9ubuntu1.1

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3929-1
CVE-2014-9323, CVE-2017-6369

Package Information:
https://launchpad.net/ubuntu/+source/firebird2.5/2.5.2.26540.ds4-9ubuntu1.1

USN-3930-1: Linux kernel vulnerabilities

=========================================================================
Ubuntu Security Notice USN-3930-1
April 02, 2019

linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-raspi2
vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-kvm: Linux kernel for cloud environments
- linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the
Advanced Linux Sound Architecture (ALSA) subsystem. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2018-19824)

Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information
leak in the Bluetooth implementation of the Linux kernel. An attacker
within Bluetooth range could use this to expose sensitive information
(kernel memory). (CVE-2019-3459, CVE-2019-3460)

Jann Horn discovered that the KVM implementation in the Linux kernel
contained a use-after-free vulnerability. An attacker in a guest VM with
access to /dev/kvm could use this to cause a denial of service (guest VM
crash). (CVE-2019-6974)

Jim Mattson and Felix Wilhelm discovered a use-after-free vulnerability in
the KVM subsystem of the Linux kernel, when using nested virtual machines.
A local attacker in a guest VM could use this to cause a denial of service
(system crash) or possibly execute arbitrary code in the host system.
(CVE-2019-7221)

Felix Wilhelm discovered that an information leak vulnerability existed in
the KVM subsystem of the Linux kernel, when nested virtualization is used.
A local attacker could use this to expose sensitive information (host
system memory to a guest VM). (CVE-2019-7222)

Jann Horn discovered that the eBPF implementation in the Linux kernel was
insufficiently hardened against Spectre V1 attacks. A local attacker could
use this to expose sensitive information. (CVE-2019-7308)

It was discovered that a use-after-free vulnerability existed in the user-
space API for crypto (af_alg) implementation in the Linux kernel. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2019-8912)

Jakub Jirasek discovered a use-after-free vulnerability in the SCTP
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2019-8956)

It was discovered that the Linux kernel did not properly deallocate memory
when handling certain errors while reading files. A local attacker could
use this to cause a denial of service (excessive memory consumption).
(CVE-2019-8980)

It was discovered that a use-after-free vulnerability existed in the IPMI
implementation in the Linux kernel. A local attacker with access to the
IPMI character device files could use this to cause a denial of service
(system crash). (CVE-2019-9003)

Jann Horn discovered that the SNMP NAT implementation in the Linux kernel
performed insufficient ASN.1 length checks. An attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2019-9162)

Jann Horn discovered that the mmap implementation in the Linux kernel did
not properly check for the mmap minimum address in some situations. A local
attacker could use this to assist exploiting a kernel NULL pointer
dereference vulnerability. (CVE-2019-9213)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.10:
linux-image-4.18.0-1008-gcp 4.18.0-1008.9
linux-image-4.18.0-1009-kvm 4.18.0-1009.9
linux-image-4.18.0-1011-raspi2 4.18.0-1011.13
linux-image-4.18.0-1012-aws 4.18.0-1012.14
linux-image-4.18.0-1014-azure 4.18.0-1014.14
linux-image-4.18.0-17-generic 4.18.0-17.18
linux-image-4.18.0-17-generic-lpae 4.18.0-17.18
linux-image-4.18.0-17-lowlatency 4.18.0-17.18
linux-image-4.18.0-17-snapdragon 4.18.0-17.18
linux-image-aws 4.18.0.1012.12
linux-image-azure 4.18.0.1014.15
linux-image-gcp 4.18.0.1008.8
linux-image-generic 4.18.0.17.18
linux-image-generic-lpae 4.18.0.17.18
linux-image-gke 4.18.0.1008.8
linux-image-kvm 4.18.0.1009.9
linux-image-lowlatency 4.18.0.17.18
linux-image-raspi2 4.18.0.1011.8
linux-image-snapdragon 4.18.0.17.18
linux-image-virtual 4.18.0.17.18

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://usn.ubuntu.com/usn/usn-3930-1
CVE-2018-19824, CVE-2019-3459, CVE-2019-3460, CVE-2019-6974,
CVE-2019-7221, CVE-2019-7222, CVE-2019-7308, CVE-2019-8912,
CVE-2019-8956, CVE-2019-8980, CVE-2019-9003, CVE-2019-9162,
CVE-2019-9213

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.18.0-17.18
https://launchpad.net/ubuntu/+source/linux-aws/4.18.0-1012.14
https://launchpad.net/ubuntu/+source/linux-azure/4.18.0-1014.14
https://launchpad.net/ubuntu/+source/linux-gcp/4.18.0-1008.9
https://launchpad.net/ubuntu/+source/linux-kvm/4.18.0-1009.9
https://launchpad.net/ubuntu/+source/linux-raspi2/4.18.0-1011.13

USN-3930-2: Linux kernel (HWE) vulnerabilities

=========================================================================
Ubuntu Security Notice USN-3930-2
April 02, 2019

linux-hwe, linux-azure vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-hwe: Linux hardware enablement (HWE) kernel

Details:

USN-3930-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.10.
This update provides the corresponding updates for the Linux Hardware
Enablement (HWE) kernel from Ubuntu 18.10 for Ubuntu 18.04 LTS.

Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the
Advanced Linux Sound Architecture (ALSA) subsystem. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2018-19824)

Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information
leak in the Bluetooth implementation of the Linux kernel. An attacker
within Bluetooth range could use this to expose sensitive information
(kernel memory). (CVE-2019-3459, CVE-2019-3460)

Jann Horn discovered that the KVM implementation in the Linux kernel
contained a use-after-free vulnerability. An attacker in a guest VM with
access to /dev/kvm could use this to cause a denial of service (guest VM
crash). (CVE-2019-6974)

Jim Mattson and Felix Wilhelm discovered a use-after-free vulnerability in
the KVM subsystem of the Linux kernel, when using nested virtual machines.
A local attacker in a guest VM could use this to cause a denial of service
(system crash) or possibly execute arbitrary code in the host system.
(CVE-2019-7221)

Felix Wilhelm discovered that an information leak vulnerability existed in
the KVM subsystem of the Linux kernel, when nested virtualization is used.
A local attacker could use this to expose sensitive information (host
system memory to a guest VM). (CVE-2019-7222)

Jann Horn discovered that the eBPF implementation in the Linux kernel was
insufficiently hardened against Spectre V1 attacks. A local attacker could
use this to expose sensitive information. (CVE-2019-7308)

It was discovered that a use-after-free vulnerability existed in the user-
space API for crypto (af_alg) implementation in the Linux kernel. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2019-8912)

Jakub Jirasek discovered a use-after-free vulnerability in the SCTP
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2019-8956)

It was discovered that the Linux kernel did not properly deallocate memory
when handling certain errors while reading files. A local attacker could
use this to cause a denial of service (excessive memory consumption).
(CVE-2019-8980)

It was discovered that a use-after-free vulnerability existed in the IPMI
implementation in the Linux kernel. A local attacker with access to the
IPMI character device files could use this to cause a denial of service
(system crash). (CVE-2019-9003)

Jann Horn discovered that the SNMP NAT implementation in the Linux kernel
performed insufficient ASN.1 length checks. An attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2019-9162)

Jann Horn discovered that the mmap implementation in the Linux kernel did
not properly check for the mmap minimum address in some situations. A local
attacker could use this to assist exploiting a kernel NULL pointer
dereference vulnerability. (CVE-2019-9213)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
linux-image-4.18.0-1014-azure 4.18.0-1014.14~18.04.1
linux-image-4.18.0-17-generic 4.18.0-17.18~18.04.1
linux-image-4.18.0-17-generic-lpae 4.18.0-17.18~18.04.1
linux-image-4.18.0-17-lowlatency 4.18.0-17.18~18.04.1
linux-image-4.18.0-17-snapdragon 4.18.0-17.18~18.04.1
linux-image-azure 4.18.0.1014.13
linux-image-generic-hwe-18.04 4.18.0.17.67
linux-image-generic-lpae-hwe-18.04 4.18.0.17.67
linux-image-lowlatency-hwe-18.04 4.18.0.17.67
linux-image-snapdragon-hwe-18.04 4.18.0.17.67
linux-image-virtual-hwe-18.04 4.18.0.17.67

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://usn.ubuntu.com/usn/usn-3930-2
https://usn.ubuntu.com/usn/usn-3930-1
CVE-2018-19824, CVE-2019-3459, CVE-2019-3460, CVE-2019-6974,
CVE-2019-7221, CVE-2019-7222, CVE-2019-7308, CVE-2019-8912,
CVE-2019-8956, CVE-2019-8980, CVE-2019-9003, CVE-2019-9162,
CVE-2019-9213

Package Information:
https://launchpad.net/ubuntu/+source/linux-azure/4.18.0-1014.14~18.04.1
https://launchpad.net/ubuntu/+source/linux-hwe/4.18.0-17.18~18.04.1

USN-3931-1: Linux kernel vulnerabilities

=========================================================================
Ubuntu Security Notice USN-3931-1
April 02, 2019

linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-oracle,
linux-raspi2 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-kvm: Linux kernel for cloud environments
- linux-oem: Linux kernel for OEM processors
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

M. Vefa Bicakci and Andy Lutomirski discovered that the kernel did not
properly set up all arguments to an error handler callback used when
running as a paravirtualized guest. An unprivileged attacker in a
paravirtualized guest VM could use this to cause a denial of service (guest
VM crash). (CVE-2018-14678)

It was discovered that the KVM implementation in the Linux kernel on ARM
64bit processors did not properly handle some ioctls. An attacker with the
privilege to create KVM-based virtual machines could use this to cause a
denial of service (host system crash) or execute arbitrary code in the
host. (CVE-2018-18021)

Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the
Advanced Linux Sound Architecture (ALSA) subsystem. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2018-19824)

Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information
leak in the Bluetooth implementation of the Linux kernel. An attacker
within Bluetooth range could use this to expose sensitive information
(kernel memory). (CVE-2019-3459, CVE-2019-3460)

Jann Horn discovered that the KVM implementation in the Linux kernel
contained a use-after-free vulnerability. An attacker in a guest VM with
access to /dev/kvm could use this to cause a denial of service (guest VM
crash). (CVE-2019-6974)

Jim Mattson and Felix Wilhelm discovered a use-after-free vulnerability in
the KVM subsystem of the Linux kernel, when using nested virtual machines.
A local attacker in a guest VM could use this to cause a denial of service
(system crash) or possibly execute arbitrary code in the host system.
(CVE-2019-7221)

Felix Wilhelm discovered that an information leak vulnerability existed in
the KVM subsystem of the Linux kernel, when nested virtualization is used.
A local attacker could use this to expose sensitive information (host
system memory to a guest VM). (CVE-2019-7222)

Jann Horn discovered that the eBPF implementation in the Linux kernel was
insufficiently hardened against Spectre V1 attacks. A local attacker could
use this to expose sensitive information. (CVE-2019-7308)

It was discovered that a use-after-free vulnerability existed in the user-
space API for crypto (af_alg) implementation in the Linux kernel. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2019-8912)

It was discovered that the Linux kernel did not properly deallocate memory
when handling certain errors while reading files. A local attacker could
use this to cause a denial of service (excessive memory consumption).
(CVE-2019-8980)

Jann Horn discovered that the mmap implementation in the Linux kernel did
not properly check for the mmap minimum address in some situations. A local
attacker could use this to assist exploiting a kernel NULL pointer
dereference vulnerability. (CVE-2019-9213)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
linux-image-4.15.0-1010-oracle 4.15.0-1010.12
linux-image-4.15.0-1029-gcp 4.15.0-1029.31
linux-image-4.15.0-1031-kvm 4.15.0-1031.31
linux-image-4.15.0-1033-raspi2 4.15.0-1033.35
linux-image-4.15.0-1035-aws 4.15.0-1035.37
linux-image-4.15.0-1035-oem 4.15.0-1035.40
linux-image-4.15.0-47-generic 4.15.0-47.50
linux-image-4.15.0-47-generic-lpae 4.15.0-47.50
linux-image-4.15.0-47-lowlatency 4.15.0-47.50
linux-image-4.15.0-47-snapdragon 4.15.0-47.50
linux-image-aws 4.15.0.1035.34
linux-image-gcp 4.15.0.1029.31
linux-image-generic 4.15.0.47.49
linux-image-generic-lpae 4.15.0.47.49
linux-image-gke 4.15.0.1029.31
linux-image-kvm 4.15.0.1031.31
linux-image-lowlatency 4.15.0.47.49
linux-image-oem 4.15.0.1035.40
linux-image-oracle 4.15.0.1010.13
linux-image-raspi2 4.15.0.1033.31
linux-image-snapdragon 4.15.0.47.49
linux-image-virtual 4.15.0.47.49

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://usn.ubuntu.com/usn/usn-3931-1
CVE-2018-14678, CVE-2018-18021, CVE-2018-19824, CVE-2019-3459,
CVE-2019-3460, CVE-2019-6974, CVE-2019-7221, CVE-2019-7222,
CVE-2019-7308, CVE-2019-8912, CVE-2019-8980, CVE-2019-9213

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.15.0-47.50
https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1035.37
https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1029.31
https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1031.31
https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1035.40
https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1010.12
https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1033.35

USN-3931-2: Linux kernel (HWE) vulnerabilities

=========================================================================
Ubuntu Security Notice USN-3931-2
April 02, 2019

linux-hwe, linux-aws-hwe, linux-azure, linux-gcp, linux-oracle
vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe: Linux hardware enablement (HWE) kernel
- linux-oracle: Linux kernel for Oracle Cloud systems

Details:

USN-3931-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu
16.04 LTS and for the Linux Azure kernel for Ubuntu 14.04 LTS.

M. Vefa Bicakci and Andy Lutomirski discovered that the kernel did not
properly set up all arguments to an error handler callback used when
running as a paravirtualized guest. An unprivileged attacker in a
paravirtualized guest VM could use this to cause a denial of service (guest
VM crash). (CVE-2018-14678)

It was discovered that the KVM implementation in the Linux kernel on ARM
64bit processors did not properly handle some ioctls. An attacker with the
privilege to create KVM-based virtual machines could use this to cause a
denial of service (host system crash) or execute arbitrary code in the
host. (CVE-2018-18021)

Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the
Advanced Linux Sound Architecture (ALSA) subsystem. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2018-19824)

Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information
leak in the Bluetooth implementation of the Linux kernel. An attacker
within Bluetooth range could use this to expose sensitive information
(kernel memory). (CVE-2019-3459, CVE-2019-3460)

Jann Horn discovered that the KVM implementation in the Linux kernel
contained a use-after-free vulnerability. An attacker in a guest VM with
access to /dev/kvm could use this to cause a denial of service (guest VM
crash). (CVE-2019-6974)

Jim Mattson and Felix Wilhelm discovered a use-after-free vulnerability in
the KVM subsystem of the Linux kernel, when using nested virtual machines.
A local attacker in a guest VM could use this to cause a denial of service
(system crash) or possibly execute arbitrary code in the host system.
(CVE-2019-7221)

Felix Wilhelm discovered that an information leak vulnerability existed in
the KVM subsystem of the Linux kernel, when nested virtualization is used.
A local attacker could use this to expose sensitive information (host
system memory to a guest VM). (CVE-2019-7222)

Jann Horn discovered that the eBPF implementation in the Linux kernel was
insufficiently hardened against Spectre V1 attacks. A local attacker could
use this to expose sensitive information. (CVE-2019-7308)

It was discovered that a use-after-free vulnerability existed in the user-
space API for crypto (af_alg) implementation in the Linux kernel. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2019-8912)

It was discovered that the Linux kernel did not properly deallocate memory
when handling certain errors while reading files. A local attacker could
use this to cause a denial of service (excessive memory consumption).
(CVE-2019-8980)

Jann Horn discovered that the mmap implementation in the Linux kernel did
not properly check for the mmap minimum address in some situations. A local
attacker could use this to assist exploiting a kernel NULL pointer
dereference vulnerability. (CVE-2019-9213)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
linux-image-4.15.0-1010-oracle 4.15.0-1010.12~16.04.1
linux-image-4.15.0-1029-gcp 4.15.0-1029.31~16.04.1
linux-image-4.15.0-1035-aws 4.15.0-1035.37~16.04.1
linux-image-4.15.0-1041-azure 4.15.0-1041.45
linux-image-4.15.0-47-generic 4.15.0-47.50~16.04.1
linux-image-4.15.0-47-generic-lpae 4.15.0-47.50~16.04.1
linux-image-4.15.0-47-lowlatency 4.15.0-47.50~16.04.1
linux-image-aws-hwe 4.15.0.1035.35
linux-image-azure 4.15.0.1041.45
linux-image-gcp 4.15.0.1029.43
linux-image-generic-hwe-16.04 4.15.0.47.68
linux-image-generic-lpae-hwe-16.04 4.15.0.47.68
linux-image-gke 4.15.0.1029.43
linux-image-lowlatency-hwe-16.04 4.15.0.47.68
linux-image-oem 4.15.0.47.68
linux-image-oracle 4.15.0.1010.4
linux-image-virtual-hwe-16.04 4.15.0.47.68

Ubuntu 14.04 LTS:
linux-image-4.15.0-1041-azure 4.15.0-1041.45~14.04.1
linux-image-azure 4.15.0.1041.28

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://usn.ubuntu.com/usn/usn-3931-2
https://usn.ubuntu.com/usn/usn-3931-1
CVE-2018-14678, CVE-2018-18021, CVE-2018-19824, CVE-2019-3459,
CVE-2019-3460, CVE-2019-6974, CVE-2019-7221, CVE-2019-7222,
CVE-2019-7308, CVE-2019-8912, CVE-2019-8980, CVE-2019-9213

Package Information:
https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1035.37~16.04.1
https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1041.45
https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1029.31~16.04.1
https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-47.50~16.04.1
https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1010.12~16.04.1
https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1041.45~14.04.1

USN-3932-1: Linux kernel vulnerabilities

=========================================================================
Ubuntu Security Notice USN-3932-1
April 02, 2019

linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-kvm: Linux kernel for cloud environments
- linux-raspi2: Linux kernel for Raspberry Pi 2
- linux-snapdragon: Linux kernel for Snapdragon processors

Details:

It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)

Wen Xu discovered that the f2fs file system implementation in the Linux
kernel did not properly validate metadata. An attacker could use this to
construct a malicious f2fs image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14614, CVE-2018-14616)

Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation
in the Linux kernel did not properly validate metadata. An attacker could
use this to construct a malicious btrfs image that, when mounted, could
cause a denial of service (system crash). (CVE-2018-14610, CVE-2018-14611,
CVE-2018-14612, CVE-2018-14613)

Vasily Averin and Evgenii Shatokhin discovered that a use-after-free
vulnerability existed in the NFS41+ subsystem when multiple network
namespaces are in use. A local attacker in a container could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2018-16884)

It was discovered that a use-after-free vulnerability existed in the PPP
over L2TP implementation in the Linux kernel. A privileged local attacker
could use this to possibly execute arbitrary code. (CVE-2018-9517)

Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information
leak in the Bluetooth implementation of the Linux kernel. An attacker
within Bluetooth range could use this to expose sensitive information
(kernel memory). (CVE-2019-3459, CVE-2019-3460)

Jann Horn discovered that the KVM implementation in the Linux kernel
contained a use-after-free vulnerability. An attacker in a guest VM with
access to /dev/kvm could use this to cause a denial of service (guest VM
crash). (CVE-2019-6974)

Jim Mattson and Felix Wilhelm discovered a use-after-free vulnerability in
the KVM subsystem of the Linux kernel, when using nested virtual machines.
A local attacker in a guest VM could use this to cause a denial of service
(system crash) or possibly execute arbitrary code in the host system.
(CVE-2019-7221)

Felix Wilhelm discovered that an information leak vulnerability existed in
the KVM subsystem of the Linux kernel, when nested virtualization is used.
A local attacker could use this to expose sensitive information (host
system memory to a guest VM). (CVE-2019-7222)

Jann Horn discovered that the mmap implementation in the Linux kernel did
not properly check for the mmap minimum address in some situations. A local
attacker could use this to assist exploiting a kernel NULL pointer
dereference vulnerability. (CVE-2019-9213)

Muyu Yu discovered that the CAN implementation in the Linux kernel in some
situations did not properly restrict the field size when processing
outgoing frames. A local attacker with CAP_NET_ADMIN privileges could use
this to execute arbitrary code. (CVE-2019-3701)

Vladis Dronov discovered that the debug interface for the Linux kernel's
HID subsystem did not properly validate passed parameters in some
situations. A local privileged attacker could use this to cause a denial of
service (infinite loop). (CVE-2019-3819)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
linux-image-4.4.0-1043-kvm 4.4.0-1043.49
linux-image-4.4.0-1079-aws 4.4.0-1079.89
linux-image-4.4.0-1106-raspi2 4.4.0-1106.114
linux-image-4.4.0-1110-snapdragon 4.4.0-1110.115
linux-image-4.4.0-145-generic 4.4.0-145.171
linux-image-4.4.0-145-generic-lpae 4.4.0-145.171
linux-image-4.4.0-145-lowlatency 4.4.0-145.171
linux-image-4.4.0-145-powerpc-e500mc 4.4.0-145.171
linux-image-4.4.0-145-powerpc-smp 4.4.0-145.171
linux-image-4.4.0-145-powerpc64-emb 4.4.0-145.171
linux-image-4.4.0-145-powerpc64-smp 4.4.0-145.171
linux-image-aws 4.4.0.1079.82
linux-image-generic 4.4.0.145.153
linux-image-generic-lpae 4.4.0.145.153
linux-image-kvm 4.4.0.1043.43
linux-image-lowlatency 4.4.0.145.153
linux-image-powerpc-e500mc 4.4.0.145.153
linux-image-powerpc-smp 4.4.0.145.153
linux-image-powerpc64-emb 4.4.0.145.153
linux-image-powerpc64-smp 4.4.0.145.153
linux-image-raspi2 4.4.0.1106.106
linux-image-snapdragon 4.4.0.1110.102
linux-image-virtual 4.4.0.145.153

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://usn.ubuntu.com/usn/usn-3932-1
CVE-2017-18249, CVE-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613,
CVE-2018-14614, CVE-2018-14616, CVE-2018-16884, CVE-2018-9517,
CVE-2019-3459, CVE-2019-3460, CVE-2019-3701, CVE-2019-3819,
CVE-2019-6974, CVE-2019-7221, CVE-2019-7222, CVE-2019-9213

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.4.0-145.171
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1079.89
https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1043.49
https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1106.114
https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1110.115

USN-3932-2: Linux kernel (Xenial HWE) vulnerabilities

=========================================================================
Ubuntu Security Notice USN-3932-2
April 02, 2019

linux-lts-xenial, linux-aws vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty

Details:

USN-3932-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 LTS.

It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)

Wen Xu discovered that the f2fs file system implementation in the Linux
kernel did not properly validate metadata. An attacker could use this to
construct a malicious f2fs image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14614, CVE-2018-14616)

Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation
in the Linux kernel did not properly validate metadata. An attacker could
use this to construct a malicious btrfs image that, when mounted, could
cause a denial of service (system crash). (CVE-2018-14610, CVE-2018-14611,
CVE-2018-14612, CVE-2018-14613)

Vasily Averin and Evgenii Shatokhin discovered that a use-after-free
vulnerability existed in the NFS41+ subsystem when multiple network
namespaces are in use. A local attacker in a container could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2018-16884)

It was discovered that a use-after-free vulnerability existed in the PPP
over L2TP implementation in the Linux kernel. A privileged local attacker
could use this to possibly execute arbitrary code. (CVE-2018-9517)

Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information
leak in the Bluetooth implementation of the Linux kernel. An attacker
within Bluetooth range could use this to expose sensitive information
(kernel memory). (CVE-2019-3459, CVE-2019-3460)

Jann Horn discovered that the KVM implementation in the Linux kernel
contained a use-after-free vulnerability. An attacker in a guest VM with
access to /dev/kvm could use this to cause a denial of service (guest VM
crash). (CVE-2019-6974)

Jim Mattson and Felix Wilhelm discovered a use-after-free vulnerability in
the KVM subsystem of the Linux kernel, when using nested virtual machines.
A local attacker in a guest VM could use this to cause a denial of service
(system crash) or possibly execute arbitrary code in the host system.
(CVE-2019-7221)

Felix Wilhelm discovered that an information leak vulnerability existed in
the KVM subsystem of the Linux kernel, when nested virtualization is used.
A local attacker could use this to expose sensitive information (host
system memory to a guest VM). (CVE-2019-7222)

Jann Horn discovered that the mmap implementation in the Linux kernel did
not properly check for the mmap minimum address in some situations. A local
attacker could use this to assist exploiting a kernel NULL pointer
dereference vulnerability. (CVE-2019-9213)

Muyu Yu discovered that the CAN implementation in the Linux kernel in some
situations did not properly restrict the field size when processing
outgoing frames. A local attacker with CAP_NET_ADMIN privileges could use
this to execute arbitrary code. (CVE-2019-3701)

Vladis Dronov discovered that the debug interface for the Linux kernel's
HID subsystem did not properly validate passed parameters in some
situations. A local privileged attacker could use this to cause a denial of
service (infinite loop). (CVE-2019-3819)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
linux-image-4.4.0-1040-aws 4.4.0-1040.43
linux-image-4.4.0-144-generic 4.4.0-144.170~14.04.1
linux-image-4.4.0-144-generic-lpae 4.4.0-144.170~14.04.1
linux-image-4.4.0-144-lowlatency 4.4.0-144.170~14.04.1
linux-image-4.4.0-144-powerpc-e500mc 4.4.0-144.170~14.04.1
linux-image-4.4.0-144-powerpc-smp 4.4.0-144.170~14.04.1
linux-image-4.4.0-144-powerpc64-emb 4.4.0-144.170~14.04.1
linux-image-4.4.0-144-powerpc64-smp 4.4.0-144.170~14.04.1
linux-image-aws 4.4.0.1040.41
linux-image-generic-lpae-lts-xenial 4.4.0.144.127
linux-image-generic-lts-xenial 4.4.0.144.127
linux-image-lowlatency-lts-xenial 4.4.0.144.127
linux-image-powerpc-e500mc-lts-xenial 4.4.0.144.127
linux-image-powerpc-smp-lts-xenial 4.4.0.144.127
linux-image-powerpc64-emb-lts-xenial 4.4.0.144.127
linux-image-powerpc64-smp-lts-xenial 4.4.0.144.127
linux-image-virtual-lts-xenial 4.4.0.144.127

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://usn.ubuntu.com/usn/usn-3932-2
https://usn.ubuntu.com/usn/usn-3932-1
CVE-2017-18249, CVE-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613,
CVE-2018-14614, CVE-2018-14616, CVE-2018-16884, CVE-2018-9517,
CVE-2019-3459, CVE-2019-3460, CVE-2019-3701, CVE-2019-3819,
CVE-2019-6974, CVE-2019-7221, CVE-2019-7222, CVE-2019-9213

Package Information:
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1040.43
https://launchpad.net/ubuntu/+source/linux-lts-xenial/4.4.0-144.170~14.04.1

USN-3933-1: Linux kernel vulnerabilities

=========================================================================
Ubuntu Security Notice USN-3933-1
April 02, 2019

linux vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel

Details:

It was discovered that an information leak vulnerability existed in the
Bluetooth implementation of the Linux kernel. An attacker within Bluetooth
range could possibly expose sensitive information (kernel memory).
(CVE-2017-1000410)

It was discovered that the USB serial device driver in the Linux kernel did
not properly validate baud rate settings when debugging is enabled. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2017-18360)

Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the
Advanced Linux Sound Architecture (ALSA) subsystem. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2018-19824)

Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information
leak in the Bluetooth implementation of the Linux kernel. An attacker
within Bluetooth range could use this to expose sensitive information
(kernel memory). (CVE-2019-3459, CVE-2019-3460)

Jann Horn discovered that the KVM implementation in the Linux kernel
contained a use-after-free vulnerability. An attacker in a guest VM with
access to /dev/kvm could use this to cause a denial of service (guest VM
crash). (CVE-2019-6974)

Felix Wilhelm discovered that an information leak vulnerability existed in
the KVM subsystem of the Linux kernel, when nested virtualization is used.
A local attacker could use this to expose sensitive information (host
system memory to a guest VM). (CVE-2019-7222)

Jann Horn discovered that the mmap implementation in the Linux kernel did
not properly check for the mmap minimum address in some situations. A local
attacker could use this to assist exploiting a kernel NULL pointer
dereference vulnerability. (CVE-2019-9213)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
linux-image-3.13.0-168-generic 3.13.0-168.218
linux-image-3.13.0-168-generic-lpae 3.13.0-168.218
linux-image-3.13.0-168-lowlatency 3.13.0-168.218
linux-image-3.13.0-168-powerpc-e500 3.13.0-168.218
linux-image-3.13.0-168-powerpc-e500mc 3.13.0-168.218
linux-image-3.13.0-168-powerpc-smp 3.13.0-168.218
linux-image-3.13.0-168-powerpc64-emb 3.13.0-168.218
linux-image-3.13.0-168-powerpc64-smp 3.13.0-168.218
linux-image-generic 3.13.0.168.179
linux-image-generic-lpae 3.13.0.168.179
linux-image-lowlatency 3.13.0.168.179
linux-image-powerpc-e500 3.13.0.168.179
linux-image-powerpc-e500mc 3.13.0.168.179
linux-image-powerpc-smp 3.13.0.168.179
linux-image-powerpc64-emb 3.13.0.168.179
linux-image-powerpc64-smp 3.13.0.168.179
linux-image-virtual 3.13.0.168.179

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://usn.ubuntu.com/usn/usn-3933-1
CVE-2017-1000410, CVE-2017-18360, CVE-2018-19824, CVE-2019-3459,
CVE-2019-3460, CVE-2019-6974, CVE-2019-7222, CVE-2019-9213

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-168.218

USN-3933-2: Linux kernel (Trusty HWE) vulnerabilities

=========================================================================
Ubuntu Security Notice USN-3933-2
April 02, 2019

linux-lts-trusty vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM

Details:

USN-3933-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu
12.04 ESM.

It was discovered that an information leak vulnerability existed in the
Bluetooth implementation of the Linux kernel. An attacker within Bluetooth
range could possibly expose sensitive information (kernel memory).
(CVE-2017-1000410)

It was discovered that the USB serial device driver in the Linux kernel did
not properly validate baud rate settings when debugging is enabled. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2017-18360)

Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the
Advanced Linux Sound Architecture (ALSA) subsystem. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2018-19824)

Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information
leak in the Bluetooth implementation of the Linux kernel. An attacker
within Bluetooth range could use this to expose sensitive information
(kernel memory). (CVE-2019-3459, CVE-2019-3460)

Jann Horn discovered that the KVM implementation in the Linux kernel
contained a use-after-free vulnerability. An attacker in a guest VM with
access to /dev/kvm could use this to cause a denial of service (guest VM
crash). (CVE-2019-6974)

Felix Wilhelm discovered that an information leak vulnerability existed in
the KVM subsystem of the Linux kernel, when nested virtualization is used.
A local attacker could use this to expose sensitive information (host
system memory to a guest VM). (CVE-2019-7222)

Jann Horn discovered that the mmap implementation in the Linux kernel did
not properly check for the mmap minimum address in some situations. A local
attacker could use this to assist exploiting a kernel NULL pointer
dereference vulnerability. (CVE-2019-9213)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 ESM:
linux-image-3.13.0-168-generic 3.13.0-168.218~precise1
linux-image-3.13.0-168-generic-lpae 3.13.0-168.218~precise1
linux-image-3.13.0-168-lowlatency 3.13.0-168.218~precise1
linux-image-generic-lpae-lts-trusty 3.13.0.168.157
linux-image-generic-lts-trusty 3.13.0.168.157

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://usn.ubuntu.com/usn/usn-3933-2
https://usn.ubuntu.com/usn/usn-3933-1
CVE-2017-1000410, CVE-2017-18360, CVE-2018-19824, CVE-2019-3459,
CVE-2019-3460, CVE-2019-6974, CVE-2019-7222, CVE-2019-9213