==========================================================================
Ubuntu Security Notice USN-6742-2
April 23, 2024

linux-azure, linux-lowlatency, linux-nvidia 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-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-lowlatency: Linux low latency kernel
- linux-nvidia: Linux kernel for NVIDIA systems

Details:

Daniele Antonioli discovered that the Secure Simple Pairing and Secure
Connections pairing in the Bluetooth protocol could allow an
unauthenticated user to complete authentication without pairing
credentials. A physically proximate attacker placed between two Bluetooth
devices could use this to subsequently impersonate one of the paired
devices. (CVE-2023-24023)

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;
   - Netfilter;
(CVE-2024-26581, CVE-2023-52600, 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-5.15.0-105-lowlatency  5.15.0-105.115
   linux-image-5.15.0-105-lowlatency-64k  5.15.0-105.115
   linux-image-5.15.0-1053-nvidia  5.15.0-1053.54
   linux-image-5.15.0-1053-nvidia-lowlatency  5.15.0-1053.54
   linux-image-5.15.0-1061-azure   5.15.0-1061.70
   linux-image-azure-lts-22.04     5.15.0.1061.59
   linux-image-lowlatency          5.15.0.105.100
   linux-image-lowlatency-64k      5.15.0.105.100
   linux-image-nvidia              5.15.0.1053.53
   linux-image-nvidia-lowlatency   5.15.0.1053.53

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-6742-2
   https://ubuntu.com/security/notices/USN-6742-1
   CVE-2023-24023, CVE-2023-52600, CVE-2023-52603, CVE-2024-26581

Package Information:
   https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1061.70
   https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-105.115
   https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1053.54