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.
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Ubuntu Security Notice USN-5857-1
February 09, 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:
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