USN-1234-1: acpid vulnerability

Ubuntu Security Notice USN-1234-1

20th October, 2011

acpid vulnerability

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

  • Ubuntu 11.04
  • Ubuntu 10.10
  • Ubuntu 10.04 LTS

Summary

acpid could be made to stall under certain conditions.

Software description

  • acpid - Advanced Configuration and Power Interface event daemon

Details

Vasiliy Kulikov discovered that acpid did not properly handle connections
from poorly behaving clients. A local attacker could potentially exploit
this to cause a denial of service.

Update instructions

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

Ubuntu 11.04:
acpid 1:2.0.7-1ubuntu2.1
Ubuntu 10.10:
acpid 1.0.10-5ubuntu4.1
Ubuntu 10.04 LTS:
acpid 1.0.10-5ubuntu2.2

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

CVE-2011-1159