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==========================================================================
Ubuntu Security Notice USN-1345-1
January 24, 2012

linux vulnerabilities
==========================================================================

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

- Ubuntu 11.04

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Peter Huewe discovered an information leak in the handling of reading
security-related TPM data. A local, unprivileged user could read the
results of a previous TPM command. (CVE-2011-1162)

Clement Lecigne discovered a bug in the HFS filesystem. A local attacker
could exploit this to cause a kernel oops. (CVE-2011-2203)

A flaw was found in how the Linux kernel handles user-defined key types. An
unprivileged local user could exploit this to crash the system.
(CVE-2011-4110)

Update instructions:

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

Ubuntu 11.04:
  linux-image-2.6.38-13-generic   2.6.38-13.54
  linux-image-2.6.38-13-generic-pae  2.6.38-13.54
  linux-image-2.6.38-13-omap      2.6.38-13.54
  linux-image-2.6.38-13-powerpc   2.6.38-13.54
  linux-image-2.6.38-13-powerpc-smp  2.6.38-13.54
  linux-image-2.6.38-13-powerpc64-smp  2.6.38-13.54
  linux-image-2.6.38-13-server    2.6.38-13.54
  linux-image-2.6.38-13-versatile  2.6.38-13.54
  linux-image-2.6.38-13-virtual   2.6.38-13.54

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

References:
  http://www.ubuntu.com/usn/usn-1345-1
  CVE-2011-1162, CVE-2011-2203, CVE-2011-4110

Package Information:
  https://launchpad.net/ubuntu/+source/linux/2.6.38-13.54


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