[USN-6924-2] Linux kernel vulnerabilities

[Giampaolo Fresi Roglia]

==========================================================================
Ubuntu Security Notice USN-6924-2
July 30, 2024

linux-aws, linux-aws-5.4 vulnerabilities
==========================================================================

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) 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:
  - ARM SCMI message protocol;
  - InfiniBand drivers;
  - TTY drivers;
  - TLS protocol;
(CVE-2022-48655, CVE-2024-36016, CVE-2024-26584, CVE-2021-47131,
CVE-2024-26907, CVE-2024-26585, CVE-2024-26583)

Update instructions:

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

Ubuntu 20.04 LTS
  linux-image-5.4.0-1129-aws      5.4.0-1129.139
  linux-image-aws-lts-20.04       5.4.0.1129.126

Ubuntu 18.04 LTS
  linux-image-5.4.0-1129-aws      5.4.0-1129.139~18.04.1
                                  Available with Ubuntu Pro
  linux-image-aws                 5.4.0.1129.139~18.04.1
                                  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-6924-2
  https://ubuntu.com/security/notices/USN-6924-1
  CVE-2021-47131, CVE-2022-48655, CVE-2024-26583, CVE-2024-26584,
  CVE-2024-26585, CVE-2024-26907, CVE-2024-36016

Package Information:
  https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1129.139
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