USN-833-1: KDE-Libs vulnerability

17 September 2009

kde4libs, kdelibs vulnerability

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

  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS

Software Description

  • kde4libs
  • kdelibs


It was discovered that KDE did not properly handle certificates with NULL characters in the Subject Alternative Name field of X.509 certificates. An attacker could exploit this to perform a man in the middle attack to view sensitive information or alter encrypted communications.

Update instructions

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

Ubuntu 9.04
kdelibs4c2a - 4:3.5.10.dfsg.1-1ubuntu8.2
kdelibs5 - 4:4.2.2-0ubuntu5.2
Ubuntu 8.10
kdelibs4c2a - 4:3.5.10-0ubuntu6.2
kdelibs5 - 4:4.1.4-0ubuntu1~intrepid1.3
Ubuntu 8.04 LTS
kdelibs4c2a - 4:3.5.10-0ubuntu1~hardy1.3

To update your system, please follow these instructions:

After a standard system upgrade you need to restart your session to effect the necessary changes.