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Ubuntu 20.04 LTS USN-7021-4 critical: Kernel security update

ubuntu
Calendar Grey October 3, 2024
Dist Ubuntu Esm H88
Essential kernel upgrades for Ubuntu 20.04 LTS address vulnerabilities across various subsystems. Update is imperative for safeguarding.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure-fde-5.15: Linux kernel for Microsoft Azure CVM cloud systems

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-2024-41009, CVE-2024-26677, CVE-2024-42160, CVE-2024-39494,

CVE-2024-39496, CVE-2024-38570, CVE-2024-27012, CVE-2024-42228)

Topics%20covered

Topics Covered

security advisory security issue kernel update software update Ubuntu system reboot linux-azure-fde

Update Instructions

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

Ubuntu 20.04 LTS
  linux-image-5.15.0-1073-azure-fde  5.15.0-1073.82~20.04.1.1
  linux-image-azure-fde           5.15.0.1073.82~20.04.1.50

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-7021-4

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

Severity
critical
Lowest
Low
Medium
High
Critical

==========================================================================

Topics%20covered

Topics Covered

security advisory security issue kernel update software update Ubuntu system reboot linux-azure-fde

Package Information

https://launchpad.net/ubuntu/+source/linux-azure-fde-5.15/5.15.0-1073.82~20.04.1.1

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