Ubuntu 6923 Published by

Ubuntu Linux has received updates addressing security concerns, including vulnerabilities related to Intel Microcode, AWS FIPS, net-tools, and cifs-utils:

[USN-7535-1] Intel Microcode vulnerabilities
[USN-7510-6] Linux kernel (AWS FIPS) vulnerabilities
[USN-7537-1] net-tools vulnerability
[USN-7536-1] cifs-utils vulnerability




[USN-7535-1] Intel Microcode vulnerabilities


==========================================================================
Ubuntu Security Notice USN-7535-1
May 27, 2025

intel-microcode vulnerabilities
==========================================================================

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

- Ubuntu 25.04
- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Intel Microcode.

Software Description:
- intel-microcode: Processor microcode for Intel CPUs

Details:

Sander Wiebing and Cristiano Giuffrida discovered that some Intel:registered:
Processors did not properly handle data in Shared Microarchitectural
Structures during Transient Execution. An authenticated attacker could
possibly use this issue to obtain sensitive information. (CVE-2024-28956)

It was discovered that some Intel:registered: Processors did not properly handle
prediction calculations. An authenticated attacker could possibly use this
issue to obtain sensitive information. (CVE-2024-43420, CVE-2024-45332,
CVE-2025-20623)

It was discovered that some Intel:registered: Processors did not properly initialize
resources in the branch prediction unit. An authenticated attacker could
possibly use this issue to obtain sensitive information. (CVE-2025-20012,
CVE-2025-24495)

Michal Raviv and Jeff Gilbert discovered that some Intel:registered: Processors did
not properly handle resources and exceptions in the core management
mechanism. An authenticated attacker could possibly use this issue to
cause a denial of service. (CVE-2025-20054, CVE-2025-20103)

Update instructions:

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

Ubuntu 25.04
intel-microcode 3.20250512.0ubuntu0.25.04.1

Ubuntu 24.10
intel-microcode 3.20250512.0ubuntu0.24.10.1

Ubuntu 24.04 LTS
intel-microcode 3.20250512.0ubuntu0.24.04.1

Ubuntu 22.04 LTS
intel-microcode 3.20250512.0ubuntu0.22.04.1

Ubuntu 20.04 LTS
intel-microcode 3.20250512.0ubuntu0.20.04.1

Ubuntu 18.04 LTS
intel-microcode 3.20250512.0ubuntu0.18.04.1+esm1
Available with Ubuntu Pro

Ubuntu 16.04 LTS
intel-microcode 3.20250512.0ubuntu0.16.04.1+esm1
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-7535-1
CVE-2024-28956, CVE-2024-43420, CVE-2024-45332, CVE-2025-20012,
CVE-2025-20054, CVE-2025-20103, CVE-2025-20623, CVE-2025-24495

Package Information:
https://launchpad.net/ubuntu/+source/intel-microcode/3.20250512.0ubuntu0.25.04.1
https://launchpad.net/ubuntu/+source/intel-microcode/3.20250512.0ubuntu0.24.10.1
https://launchpad.net/ubuntu/+source/intel-microcode/3.20250512.0ubuntu0.24.04.1
https://launchpad.net/ubuntu/+source/intel-microcode/3.20250512.0ubuntu0.22.04.1
https://launchpad.net/ubuntu/+source/intel-microcode/3.20250512.0ubuntu0.20.04.1



[USN-7510-6] Linux kernel (AWS FIPS) vulnerabilities


==========================================================================
Ubuntu Security Notice USN-7510-6
May 27, 2025

linux-aws-fips 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-aws-fips: Linux kernel for Amazon Web Services (AWS) systems with FIPS

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:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Network block device driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Network drivers;
- PCI subsystem;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- RapidIO drivers;
- Real Time Clock drivers;
- SLIMbus drivers;
- QCOM SoC drivers;
- Trusted Execution Environment drivers;
- TTY drivers;
- USB DSL drivers;
- USB Device Class drivers;
- USB core drivers;
- USB Gadget drivers;
- USB Host Controller drivers;
- Renesas USBHS Controller drivers;
- ACRN Hypervisor Service Module driver;
- File systems infrastructure;
- BTRFS file system;
- F2FS file system;
- Network file system (NFS) server daemon;
- NILFS2 file system;
- Overlay file system;
- SMB network file system;
- UBI file system;
- KVM subsystem;
- L3 Master device support module;
- Process Accounting mechanism;
- Padata parallel execution mechanism;
- printk logging mechanism;
- Scheduler infrastructure;
- Timer subsystem;
- Tracing infrastructure;
- Memory management;
- 802.1Q VLAN protocol;
- B.A.T.M.A.N. meshing protocol;
- Networking core;
- IPv4 networking;
- IPv6 networking;
- Logical Link layer;
- Multipath TCP;
- Netfilter;
- NFC subsystem;
- Open vSwitch;
- Rose network layer;
- Network traffic control;
- Wireless networking;
- Landlock security;
- Linux Security Modules (LSM) Framework;
- Tomoyo security module;
(CVE-2024-57973, CVE-2025-21728, CVE-2025-21684, CVE-2024-57980,
CVE-2025-21919, CVE-2025-21802, CVE-2025-21748, CVE-2024-58034,
CVE-2025-21877, CVE-2024-57981, CVE-2024-58071, CVE-2025-21926,
CVE-2025-21848, CVE-2025-21766, CVE-2024-57834, CVE-2024-58085,
CVE-2025-21914, CVE-2025-21758, CVE-2025-21707, CVE-2025-21726,
CVE-2025-21731, CVE-2025-21916, CVE-2025-21826, CVE-2025-21917,
CVE-2025-21760, CVE-2025-21925, CVE-2024-58086, CVE-2025-21948,
CVE-2025-21943, CVE-2025-21782, CVE-2024-56599, CVE-2025-21875,
CVE-2025-21753, CVE-2025-21721, CVE-2025-21711, CVE-2025-21787,
CVE-2025-21928, CVE-2024-57979, CVE-2025-21779, CVE-2025-21924,
CVE-2024-58020, CVE-2025-21905, CVE-2024-58002, CVE-2025-21744,
CVE-2025-21763, CVE-2024-58017, CVE-2025-21736, CVE-2024-58069,
CVE-2025-21715, CVE-2024-58083, CVE-2025-21934, CVE-2024-58055,
CVE-2025-21761, CVE-2025-21772, CVE-2025-21796, CVE-2025-21718,
CVE-2025-21719, CVE-2025-21887, CVE-2025-21806, CVE-2024-58063,
CVE-2025-21871, CVE-2025-21858, CVE-2025-21922, CVE-2025-21767,
CVE-2024-58058, CVE-2024-57986, CVE-2025-21971, CVE-2025-21912,
CVE-2025-21862, CVE-2024-58001, CVE-2024-58005, CVE-2024-58079,
CVE-2025-21749, CVE-2024-58076, CVE-2024-47726, CVE-2025-21722,
CVE-2024-58007, CVE-2024-26982, CVE-2024-58016, CVE-2025-21647,
CVE-2025-21814, CVE-2024-57978, CVE-2025-21823, CVE-2025-21795,
CVE-2025-21910, CVE-2024-58051, CVE-2024-58010, CVE-2025-21776,
CVE-2025-21859, CVE-2025-21950, CVE-2025-21811, CVE-2025-21935,
CVE-2025-21799, CVE-2025-21835, CVE-2024-58090, CVE-2025-21844,
CVE-2024-58052, CVE-2025-21951, CVE-2025-21865, CVE-2025-21820,
CVE-2025-21804, CVE-2025-21765, CVE-2025-21727, CVE-2025-21830,
CVE-2025-21846, CVE-2025-21781, CVE-2025-21704, CVE-2025-21735,
CVE-2024-58072, CVE-2025-21878, CVE-2025-21909, CVE-2024-56721,
CVE-2025-21866, CVE-2025-21904, CVE-2025-21898, CVE-2025-21920,
CVE-2025-21745, CVE-2025-21785, CVE-2025-21791, CVE-2024-57977,
CVE-2025-21764, CVE-2024-58014, CVE-2025-21762, CVE-2025-21708)

Update instructions:

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

Ubuntu 22.04 LTS
linux-image-5.15.0-1084-aws-fips 5.15.0-1084.91+fips1
Available with Ubuntu Pro
linux-image-aws-fips 5.15.0.1084.80
Available with Ubuntu Pro

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-7510-6
https://ubuntu.com/security/notices/USN-7510-5
https://ubuntu.com/security/notices/USN-7510-4
https://ubuntu.com/security/notices/USN-7510-3
https://ubuntu.com/security/notices/USN-7510-2
https://ubuntu.com/security/notices/USN-7510-1
CVE-2024-26982, CVE-2024-47726, CVE-2024-56599, CVE-2024-56721,
CVE-2024-57834, CVE-2024-57973, CVE-2024-57977, CVE-2024-57978,
CVE-2024-57979, CVE-2024-57980, CVE-2024-57981, CVE-2024-57986,
CVE-2024-58001, CVE-2024-58002, CVE-2024-58005, CVE-2024-58007,
CVE-2024-58010, CVE-2024-58014, CVE-2024-58016, CVE-2024-58017,
CVE-2024-58020, CVE-2024-58034, CVE-2024-58051, CVE-2024-58052,
CVE-2024-58055, CVE-2024-58058, CVE-2024-58063, CVE-2024-58069,
CVE-2024-58071, CVE-2024-58072, CVE-2024-58076, CVE-2024-58079,
CVE-2024-58083, CVE-2024-58085, CVE-2024-58086, CVE-2024-58090,
CVE-2025-21647, CVE-2025-21684, CVE-2025-21704, CVE-2025-21707,
CVE-2025-21708, CVE-2025-21711, CVE-2025-21715, CVE-2025-21718,
CVE-2025-21719, CVE-2025-21721, CVE-2025-21722, CVE-2025-21726,
CVE-2025-21727, CVE-2025-21728, CVE-2025-21731, CVE-2025-21735,
CVE-2025-21736, CVE-2025-21744, CVE-2025-21745, CVE-2025-21748,
CVE-2025-21749, CVE-2025-21753, CVE-2025-21758, CVE-2025-21760,
CVE-2025-21761, CVE-2025-21762, CVE-2025-21763, CVE-2025-21764,
CVE-2025-21765, CVE-2025-21766, CVE-2025-21767, CVE-2025-21772,
CVE-2025-21776, CVE-2025-21779, CVE-2025-21781, CVE-2025-21782,
CVE-2025-21785, CVE-2025-21787, CVE-2025-21791, CVE-2025-21795,
CVE-2025-21796, CVE-2025-21799, CVE-2025-21802, CVE-2025-21804,
CVE-2025-21806, CVE-2025-21811, CVE-2025-21814, CVE-2025-21820,
CVE-2025-21823, CVE-2025-21826, CVE-2025-21830, CVE-2025-21835,
CVE-2025-21844, CVE-2025-21846, CVE-2025-21848, CVE-2025-21858,
CVE-2025-21859, CVE-2025-21862, CVE-2025-21865, CVE-2025-21866,
CVE-2025-21871, CVE-2025-21875, CVE-2025-21877, CVE-2025-21878,
CVE-2025-21887, CVE-2025-21898, CVE-2025-21904, CVE-2025-21905,
CVE-2025-21909, CVE-2025-21910, CVE-2025-21912, CVE-2025-21914,
CVE-2025-21916, CVE-2025-21917, CVE-2025-21919, CVE-2025-21920,
CVE-2025-21922, CVE-2025-21924, CVE-2025-21925, CVE-2025-21926,
CVE-2025-21928, CVE-2025-21934, CVE-2025-21935, CVE-2025-21943,
CVE-2025-21948, CVE-2025-21950, CVE-2025-21951, CVE-2025-21971

Package Information:
https://launchpad.net/ubuntu/+source/linux-aws-fips/5.15.0-1084.91+fips1



[USN-7537-1] net-tools vulnerability


=========================================================================
Ubuntu Security Notice USN-7537-1
May 27, 2025

net-tools vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.04
- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

net-tools could be made to crash or run programs as your login if it
opened a specially crafted input.

Software Description:
- net-tools: NET-3 networking toolkit

Details:

It was discovered that net-tools incorrectly handled certain inputs.
An attacker could possible use this issue to cause a crash or execute
arbitrary code.

Update instructions:

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

Ubuntu 25.04
net-tools 2.10-1.1ubuntu1.25.04.1

Ubuntu 24.10
net-tools 2.10-1.1ubuntu1.24.10.1

Ubuntu 24.04 LTS
net-tools 2.10-0.1ubuntu4.1

Ubuntu 22.04 LTS
net-tools 1.60+git20181103.0eebece-1ubuntu5.1

Ubuntu 20.04 LTS
net-tools 1.60+git20180626.aebd88e-1ubuntu1.1

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

References:
https://ubuntu.com/security/notices/USN-7537-1
CVE-2025-46836

Package Information:
https://launchpad.net/ubuntu/+source/net-tools/2.10-1.1ubuntu1.25.04.1
https://launchpad.net/ubuntu/+source/net-tools/2.10-1.1ubuntu1.24.10.1
https://launchpad.net/ubuntu/+source/net-tools/2.10-0.1ubuntu4.1
https://launchpad.net/ubuntu/+source/net-tools/1.60+git20181103.0eebece-1ubuntu5.1
https://launchpad.net/ubuntu/+source/net-tools/1.60+git20180626.aebd88e-1ubuntu1.1



[USN-7536-1] cifs-utils vulnerability


==========================================================================
Ubuntu Security Notice USN-7536-1
May 27, 2025

cifs-utils vulnerability
==========================================================================

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

- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

cifs-utils could be made to expose sensitive information.

Software Description:
- cifs-utils: Common Internet File System utilities

Details:

It was discovered that cifs-utils incorrectly handled namespaces when
obtaining Kerberos credentials. An attacker could possibly use this issue
to obtain sensitive information.

Update instructions:

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

Ubuntu 24.10
cifs-utils 2:7.0-2.1ubuntu0.1

Ubuntu 24.04 LTS
cifs-utils 2:7.0-2ubuntu0.1

Ubuntu 22.04 LTS
cifs-utils 2:6.14-1ubuntu0.2

Ubuntu 20.04 LTS
cifs-utils 2:6.9-1ubuntu0.3

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

References:
https://ubuntu.com/security/notices/USN-7536-1
CVE-2025-2312

Package Information:
https://launchpad.net/ubuntu/+source/cifs-utils/2:7.0-2.1ubuntu0.1
https://launchpad.net/ubuntu/+source/cifs-utils/2:7.0-2ubuntu0.1
https://launchpad.net/ubuntu/+source/cifs-utils/2:6.14-1ubuntu0.2
https://launchpad.net/ubuntu/+source/cifs-utils/2:6.9-1ubuntu0.3