Ubuntu Security Notice USN-1412-1
29th March, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
Several security issues were fixed in the kernel.
- linux - Linux 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.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 11.10:
- 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
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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.