USN-1666-1: Aptdaemon vulnerability

Ubuntu Security Notice USN-1666-1

17th December, 2012

aptdaemon vulnerability

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

  • Ubuntu 12.04 LTS
  • Ubuntu 11.10

Summary

Aptdaemon could be tricked into installing arbitrary PPA GPG keys.

Software description

  • aptdaemon - transaction based package management service

Details

It was discovered that Aptdaemon incorrectly validated PPA GPG keys when
importing from a keyserver. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could be exploited to install altered
package repository GPG keys.

Update instructions

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

Ubuntu 12.04 LTS:
aptdaemon 0.43+bzr805-0ubuntu7
Ubuntu 11.10:
aptdaemon 0.43+bzr697-0ubuntu1.3

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

CVE-2012-0962