Ubuntu: 1342-1: Linux kernel (Oneiric backport) vulnerability
Posted by Benjamin D. Thomas   
Ubuntu The system could be made to run programs as an administrator.
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Ubuntu Security Notice USN-1342-1
January 26, 2012

linux-lts-backport-oneiric vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

The system could be made to run programs as an administrator.

Software Description:
- linux-lts-backport-oneiric: Linux kernel backport from Oneiric

Details:

Jüri Aedla discovered that the kernel incorrectly handled /proc//mem
permissions. A local attacker could exploit this and gain root privileges.

Update instructions:

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

Ubuntu 10.04 LTS:
  linux-image-3.0.0-15-generic    3.0.0-15.26~lucid1
  linux-image-3.0.0-15-generic-pae  3.0.0-15.26~lucid1
  linux-image-3.0.0-15-server     3.0.0-15.26~lucid1
  linux-image-3.0.0-15-virtual    3.0.0-15.26~lucid1

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

References:
  http://www.ubuntu.com/usn/usn-1342-1
  CVE-2012-0056

Package Information:
  https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric/3.0.0-15.26~lucid1