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Ubuntu 22.04 LTS USN-6580-1 critical: linux-oem-6.1 authorization bypass

ubuntu
Calendar Grey January 10, 2024
Dist Ubuntu Esm H88
Ubuntu Security Advisory USN-6578-1 highlights a severe kernel vulnerability that could lead to potential system crashes or unapproved access.
The system could be made to crash or run programs as an administrator.

Summary

The system could be made to crash or run programs as an administrator.

Software Description:

- 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.

Topics%20covered

Topics Covered

security advisory denial of service code execution ubuntu system crash linux kernel

Update Instructions

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

Ubuntu 22.04 LTS:
   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.

References

https://ubuntu.com/security/notices/USN-6576-1

CVE-2023-6111

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6576-1

Topics%20covered

Topics Covered

security advisory denial of service code execution ubuntu system crash linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-oem-6.1/6.1.0-1028.28

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