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USN-1412-1: Linux kernel vulnerability

29 March 2012

Several security issues were fixed in the kernel.




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

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

Ubuntu 11.10

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. 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.


Related notices

  • USN-1409-1: linux-image-3.0.0-17-generic, linux-image-3.0.0-17-server, linux-image-3.0.0-17-virtual, linux-image-3.0.0-17-generic-pae, linux-lts-backport-oneiric
  • USN-1404-1: linux-image-3.0.0-1208-omap4, linux-ti-omap4