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Ubuntu Security Notice USN-5857-1

Ubuntu Security Notice USN-5857-1
Posted Feb 10, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5857-1 - 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 or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-0179
SHA-256 | 89a67bf46dac784476ed4ab174bb4d9e5f3b7fd95ac25942c5901af229200b33

Ubuntu Security Notice USN-5857-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5857-1
February 09, 2023

linux-oem-6.0 vulnerability
==========================================================================

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:

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

Package Information:
https://launchpad.net/ubuntu/+source/linux-oem-6.0/6.0.0-1011.11
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