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Ubuntu 22.04 LTS Advisory USN-5857-1 Critical: Netfilter DoS

ubuntu
Calendar Grey February 9, 2023
Dist Ubuntu Esm H88
Ubuntu security alert USN-5858-1 reveals an issue in linux-oem-6.2 that compromises system integrity and performance.
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-6.0: Linux kernel for OEM systems

Details:

Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel

did not properly handle VLAN headers in some situations. 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 LTS:
   linux-image-6.0.0-1011-oem      6.0.0-1011.11
   linux-image-oem-22.04b          6.0.0.1011.11

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-5857-1

CVE-2023-0179

Severity
critical
Lowest
Low
Medium
High
Critical

February 09, 2023

Package Information

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