USN-3223-1: KDE-Libs vulnerability

9 March 2017

kde4libs vulnerability

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

  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS


KDE-Libs could be made to expose sensitive information over the network.

Software Description

  • kde4libs - KDE 4 core applications and libraries


Itzik Kotler, Yonatan Fridburg, and Amit Klein discovered that KDE-Libs incorrectly handled certain PAC files. A remote attacker could possibly use this issue to obtain sensitive information.

Update instructions

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

Ubuntu 14.04 LTS
kdelibs5-plugins - 4:4.13.3-0ubuntu0.4
Ubuntu 12.04 LTS
kdelibs5-plugins - 4:4.8.5-0ubuntu0.6

To update your system, please follow these instructions:

After a standard system update you need to reboot your computer to make all the necessary changes.