Ubuntu 6334 Published by

The following security updates are available for Ubuntu Linux:

[USN-6738-1] LXD vulnerability
[USN-6744-1] Pillow vulnerability
[USN-6743-2] Linux kernel (Low Latency) vulnerabilities
[USN-6744-2] Pillow vulnerability




[USN-6738-1] LXD vulnerability


==========================================================================
Ubuntu Security Notice USN-6738-1
April 22, 2024

lxd vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

LXD could be made to bypass integrity checks if it received specially crafted
input.

Software Description:
- lxd: Container hypervisor based on LXC

Details:

Fabian Bäumer, Marcus Brinkmann, and Jörg Schwenk discovered that LXD
incorrectly handled the handshake phase and the use of sequence numbers in SSH
Binary Packet Protocol (BPP). If a user or an automated system were tricked
into opening a specially crafted input file, a remote attacker could possibly
use this issue to bypass integrity checks.

Update instructions:

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
lxd 3.0.3-0ubuntu1~18.04.2+esm1
lxd-client 3.0.3-0ubuntu1~18.04.2+esm1
lxd-tools 3.0.3-0ubuntu1~18.04.2+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
golang-github-lxc-lxd-dev 2.0.11-0ubuntu1~16.04.4+esm1
lxc2 2.0.11-0ubuntu1~16.04.4+esm1
lxd 2.0.11-0ubuntu1~16.04.4+esm1
lxd-client 2.0.11-0ubuntu1~16.04.4+esm1
lxd-tools 2.0.11-0ubuntu1~16.04.4+esm1

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

References:
https://ubuntu.com/security/notices/USN-6738-1
CVE-2023-48795



[USN-6744-1] Pillow vulnerability


==========================================================================
Ubuntu Security Notice USN-6744-1
April 22, 2024

pillow vulnerability
==========================================================================

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

- Ubuntu 23.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

Pillow could be made to crash or run programs as an administrator
if it opened a specially crafted file.

Software Description:
- pillow: Python Imaging Library

Details:

Hugo van Kemenade discovered that Pillow was not properly performing
bounds checks when processing an ICC file, which could lead to a buffer
overflow. If a user or automated system were tricked into processing a
specially crafted ICC file, an attacker could possibly use this issue
to cause a denial of service or execute arbitrary code.

Update instructions:

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

Ubuntu 23.10:
python3-pil 10.0.0-1ubuntu0.2

Ubuntu 22.04 LTS:
python3-pil 9.0.1-1ubuntu0.3

Ubuntu 20.04 LTS:
python3-pil 7.0.0-4ubuntu0.9

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
python-pil 5.1.0-1ubuntu0.8+esm1
python3-pil 5.1.0-1ubuntu0.8+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
python-pil 3.1.2-0ubuntu1.6+esm2
python3-pil 3.1.2-0ubuntu1.6+esm2

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
python-pil 2.3.0-1ubuntu3.4+esm4
python3-pil 2.3.0-1ubuntu3.4+esm4

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

References:
https://ubuntu.com/security/notices/USN-6744-1
CVE-2024-28219

Package Information:
https://launchpad.net/ubuntu/+source/pillow/10.0.0-1ubuntu0.2
https://launchpad.net/ubuntu/+source/pillow/9.0.1-1ubuntu0.3
https://launchpad.net/ubuntu/+source/pillow/7.0.0-4ubuntu0.9



[USN-6743-2] Linux kernel (Low Latency) vulnerabilities


==========================================================================
Ubuntu Security Notice USN-6743-2
April 22, 2024

linux-lowlatency-hwe-6.5 vulnerabilities
==========================================================================

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

- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-lowlatency-hwe-6.5: Linux low latency kernel

Details:

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- JFS file system;
- BPF subsystem;
- Netfilter;
(CVE-2023-52600, CVE-2024-26589, CVE-2024-26591, CVE-2024-26581,
CVE-2023-52603)

Update instructions:

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

Ubuntu 22.04 LTS:
linux-image-6.5.0-28-lowlatency 6.5.0-28.29.1~22.04.1
linux-image-6.5.0-28-lowlatency-64k 6.5.0-28.29.1~22.04.1
linux-image-lowlatency-64k-hwe-22.04 6.5.0.28.29.1~22.04.1
linux-image-lowlatency-hwe-22.04 6.5.0.28.29.1~22.04.1

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://ubuntu.com/security/notices/USN-6743-2
https://ubuntu.com/security/notices/USN-6743-1
CVE-2023-52600, CVE-2023-52603, CVE-2024-26581, CVE-2024-26589,
CVE-2024-26591

Package Information:

https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.5/6.5.0-28.29.1~22.04.1



[USN-6744-2] Pillow vulnerability


==========================================================================
Ubuntu Security Notice USN-6744-2
April 22, 2024

pillow vulnerability
==========================================================================

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

- Ubuntu 20.04 LTS (Available with Ubuntu Pro)

Summary:

Pillow could be made to crash or run programs as an administrator
if it opened a specially crafted file.

Software Description:
- pillow-python2: Python Imaging Library (Pillow fork)

Details:

USN-6744-1 fixed a vulnerability in Pillow (Python 3). This update
provides the corresponding updates for Pillow (Python 2) in
Ubuntu 20.04 LTS.

Original advisory details:

Hugo van Kemenade discovered that Pillow was not properly performing
bounds checks when processing an ICC file, which could lead to a buffer
overflow. If a user or automated system were tricked into processing a
specially crafted ICC file, an attacker could possibly use this issue
to cause a denial of service or execute arbitrary code.

Update instructions:

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

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
python-pil 6.2.1-3ubuntu0.1~esm2

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

References:
https://ubuntu.com/security/notices/USN-6744-2
https://ubuntu.com/security/notices/USN-6744-1
CVE-2024-28219