Ubuntu: 1661-1: Linux kernel vulnerability
Posted by Benjamin D. Thomas   
Ubuntu The system's firewall could be bypassed by a remote attacker.
==========================================================================
Ubuntu Security Notice USN-1661-1
December 11, 2012

linux vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

The system's firewall could be bypassed by a remote attacker.

Software Description:
- linux: Linux kernel

Details:

Zhang Zuotao discovered a bug in the Linux kernel's handling of overlapping
fragments in ipv6. A remote attacker could exploit this flaw to bypass
firewalls and initial new network connections that should have been blocked
by the firewall.

Update instructions:

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-45-386       2.6.32-45.101
  linux-image-2.6.32-45-generic   2.6.32-45.101
  linux-image-2.6.32-45-generic-pae  2.6.32-45.101
  linux-image-2.6.32-45-ia64      2.6.32-45.101
  linux-image-2.6.32-45-lpia      2.6.32-45.101
  linux-image-2.6.32-45-powerpc   2.6.32-45.101
  linux-image-2.6.32-45-powerpc-smp  2.6.32-45.101
  linux-image-2.6.32-45-powerpc64-smp  2.6.32-45.101
  linux-image-2.6.32-45-preempt   2.6.32-45.101
  linux-image-2.6.32-45-server    2.6.32-45.101
  linux-image-2.6.32-45-sparc64   2.6.32-45.101
  linux-image-2.6.32-45-sparc64-smp  2.6.32-45.101
  linux-image-2.6.32-45-versatile  2.6.32-45.101
  linux-image-2.6.32-45-virtual   2.6.32-45.101

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

References:
  http://www.ubuntu.com/usn/usn-1661-1
  CVE-2012-4444

Package Information:
  https://launchpad.net/ubuntu/+source/linux/2.6.32-45.101