USN-6089-1: Linux kernel (OEM) vulnerability
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Ubuntu Security Notice USN-6089-1
May 18, 2023
linux-oem-6.0 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
Summary:
The system could be made to crash or run programs as an administrator.
Software Description:
- linux-oem-6.0: Linux kernel for OEM systems
Details:
It was discovered that the Intel i915 graphics driver in the Linux kernel
did not perform a GPU TLB flush in some situations. A local attacker could
use this to cause a denial of service or possibly execute arbitrary code.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
linux-image-6.0.0-1016-oem 6.0.0-1016.16
linux-image-oem-22.04b 6.0.0.1016.16
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-6089-1
CVE-2022-4139
Package Information:
https://launchpad.net/ubuntu/+source/linux-oem-6.0/6.0.0-1016.16
A Linux kernel (OEM) security update has been released for Ubuntu Linux 22.04 LTS.
