USN-6576-1: Linux kernel (OEM) vulnerability
10 January 2024
The system could be made to crash or run programs as an administrator.
Releases
Packages
- linux-oem-6.1 - Linux kernel for OEM systems
Details
Lonial Con discovered that the netfilter subsystem in the Linux kernel did
not properly handle an expired catchall element in some situations, leading
to a use-after-free vulnerability. A local attacker could use this to cause
a denial of service (system crash) or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.04
-
linux-image-6.1.0-1028-oem
-
6.1.0-1028.28
-
linux-image-oem-22.04
-
6.1.0.1028.29
-
linux-image-oem-22.04a
-
6.1.0.1028.29
-
linux-image-oem-22.04b
-
6.1.0.1028.29
-
linux-image-oem-22.04c
-
6.1.0.1028.29
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.