USN-1342-1: Linux kernel (Oneiric backport) vulnerability

26 January 2012

linux-lts-backport-oneiric vulnerability

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/<pid>/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

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.

References