1. Ubuntu Security Notices
  2. USN-1412-1

USN-1412-1: Linux kernel vulnerability

Publication date

29 March 2012

Overview

Several security issues were fixed in the kernel.

Releases

Packages

Details

Somnath Kotur discovered an error in the Linux kernel's VLAN (virtual lan)
and be2net drivers. An attacker on the local network could exploit this
flaw to cause a denial of service.

Somnath Kotur discovered an error in the Linux kernel's VLAN (virtual lan)
and be2net drivers. An attacker on the local network could exploit this
flaw to cause a denial of service.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.

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

Ubuntu Release Package Version
11.10 oneiric linux-image-3.0.0-17-powerpc-smp –  3.0.0-17.30
linux-image-3.0.0-17-generic –  3.0.0-17.30
linux-image-3.0.0-17-virtual –  3.0.0-17.30
linux-image-3.0.0-17-generic-pae –  3.0.0-17.30
linux-image-3.0.0-17-omap –  3.0.0-17.30
linux-image-3.0.0-17-powerpc64-smp –  3.0.0-17.30
linux-image-3.0.0-17-server –  3.0.0-17.30
linux-image-3.0.0-17-powerpc –  3.0.0-17.30

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›