USN-6775-2: Linux kernel vulnerabilities
21 May 2024
Several security issues were fixed in the Linux kernel.
Releases
Packages
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-aws-5.15 - Linux kernel for Amazon Web Services (AWS) systems
- linux-gke - Linux kernel for Google Container Engine (GKE) systems
Details
Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux
kernel contained a race condition during device removal, leading to a use-
after-free vulnerability. A physically proximate attacker could possibly
use this to cause a denial of service (system crash). (CVE-2023-47233)
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:
- MAC80211 subsystem;
- Tomoyo security module;
(CVE-2024-26622, CVE-2023-52530)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.04
-
linux-image-5.15.0-1059-gke
-
5.15.0-1059.64
-
linux-image-5.15.0-1062-aws
-
5.15.0-1062.68
-
linux-image-aws-lts-22.04
-
5.15.0.1062.62
-
linux-image-gke
-
5.15.0.1059.58
-
linux-image-gke-5.15
-
5.15.0.1059.58
Ubuntu 20.04
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.