Ubuntu: 2304-1: KDE-Libs vulnerability
Posted by Benjamin D. Thomas   
Ubuntu kauth could be tricked into bypassing polkit authorizations.
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Ubuntu Security Notice USN-2304-1
July 31, 2014

kde4libs vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

kauth could be tricked into bypassing polkit authorizations.

Software Description:
- kde4libs: KDE 4 core applications and libraries

Details:

It was discovered that kauth was using polkit in an unsafe manner. A local
attacker could possibly use this issue to bypass intended polkit
authorizations.

Update instructions:

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

Ubuntu 14.04 LTS:
  kdelibs5-plugins                4:4.13.2a-0ubuntu0.3

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

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

References:
  http://www.ubuntu.com/usn/usn-2304-1
  CVE-2014-5033

Package Information:
  https://launchpad.net/ubuntu/+source/kde4libs/4:4.13.2a-0ubuntu0.3
  https://launchpad.net/ubuntu/+source/kde4libs/4:4.8.5-0ubuntu0.4