USN-1842-1: KDE-Libs vulnerability

29 May 2013

kde4libs vulnerability

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

  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS


KDE-Libs could be made to expose web credentials.

Software Description

  • kde4libs - KDE 4 core applications and libraries


It was discovered that KIO would sometimes display web authentication credentials under certain error conditions. If a user were tricked into opening a specially crafted web page, an attacker could potentially exploit this to expose confidential information.

Update instructions

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

Ubuntu 13.04
libkio5 - 4:4.10.2-0ubuntu2.2
Ubuntu 12.10
libkio5 - 4:4.9.5-0ubuntu0.2
Ubuntu 12.04 LTS
libkio5 - 4:4.8.5-0ubuntu0.2

To update your system, please follow these instructions:

After a standard system update you need to restart any applications that use KIO from KDE-Libs, such as Konqueror, to make all the necessary changes.