USN-1180-1: libvirt vulnerability

28 July 2011

libvirt vulnerability

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

  • Ubuntu 11.04
  • Ubuntu 10.10
  • Ubuntu 10.04 LTS

Summary

An authenticated attacker could send crafted input to libvirt and cause it to crash.

Software Description

  • libvirt - Libvirt virtualization toolkit

Details

Eric Blake discovered an integer overflow flaw in libvirt. A remote authenticated attacker could exploit this by sending a crafted VCPU RPC call and cause a denial of service via application crash.

Update instructions

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

Ubuntu 11.04
libvirt-bin - 0.8.8-1ubuntu6.5
Ubuntu 10.10
libvirt-bin - 0.8.3-1ubuntu19.1
Ubuntu 10.04 LTS
libvirt-bin - 0.7.5-5ubuntu27.16

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References