USN-692-1: Gadu vulnerability

17 December 2008

ekg, libgadu vulnerability

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

  • Ubuntu 8.10
  • Ubuntu 8.04 LTS
  • Ubuntu 7.10
  • Ubuntu 6.06 LTS

Software Description

  • libgadu
  • ekg


It was discovered that the Gadu library, used by some Instant Messaging clients, did not correctly verify certain packet sizes from the server. If a user connected to a malicious server, clients using Gadu could be made to crash, leading to a denial of service.

Update instructions

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

Ubuntu 8.10
libgadu3 - 1:1.8.0+r592-1ubuntu0.1
Ubuntu 8.04 LTS
libgadu3 - 1:1.7~rc2-2ubuntu0.8.04.1
Ubuntu 7.10
libgadu3 - 1:1.7~rc2-2ubuntu0.7.10.1
Ubuntu 6.06 LTS
libgadu3 - 1:1.6+20051103-1ubuntu1.1

To update your system, please follow these instructions:

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