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Ubuntu Security Notice USN-7021-3

Ubuntu Security Notice USN-7021-3
Posted Sep 26, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7021-3 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2024-26677, CVE-2024-39496, CVE-2024-41009, CVE-2024-42160
SHA-256 | 69d8a00cc33c644b5218146c25ae3a8c80c5889b997d63ea9e1c79f9b9d8e330

Ubuntu Security Notice USN-7021-3

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-7021-3
September 26, 2024

linux-lowlatency, linux-lowlatency-hwe-5.15 vulnerabilities
==========================================================================

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-lowlatency: Linux low latency kernel
- linux-lowlatency-hwe-5.15: 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:
- GPU drivers;
- BTRFS file system;
- F2FS file system;
- GFS2 file system;
- BPF subsystem;
- Netfilter;
- RxRPC session sockets;
- Integrity Measurement Architecture(IMA) framework;
(CVE-2024-39494, CVE-2024-38570, CVE-2024-27012, CVE-2024-39496,
CVE-2024-42160, CVE-2024-41009, CVE-2024-42228, CVE-2024-26677)

Update instructions:

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

Ubuntu 22.04 LTS
linux-image-5.15.0-122-lowlatency 5.15.0-122.132
linux-image-5.15.0-122-lowlatency-64k 5.15.0-122.132
linux-image-lowlatency 5.15.0.122.111
linux-image-lowlatency-64k 5.15.0.122.111

Ubuntu 20.04 LTS
linux-image-5.15.0-122-lowlatency 5.15.0-122.132~20.04.1
linux-image-5.15.0-122-lowlatency-64k 5.15.0-122.132~20.04.1
linux-image-lowlatency-64k-hwe-20.04 5.15.0.122.132~20.04.1
linux-image-lowlatency-hwe-20.04 5.15.0.122.132~20.04.1

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-7021-3
https://ubuntu.com/security/notices/USN-7021-2
https://ubuntu.com/security/notices/USN-7021-1
CVE-2024-26677, CVE-2024-27012, CVE-2024-38570, CVE-2024-39494,
CVE-2024-39496, CVE-2024-41009, CVE-2024-42160, CVE-2024-42228

Package Information:
https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-122.132
https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-122.132~20.04.1
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