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Ubuntu Security Notice USN-2215-1
May 21, 2014

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

- Ubuntu 13.10
- Ubuntu 12.04 LTS

Summary:

libgadu could be made to crash or run programs if it received specially
crafted network traffic.

Software Description:
- libgadu: Gadu-Gadu protocol library

Details:

It was discovered that libgadu incorrectly handled certain messages from
file relay servers. A malicious remote server or a man in the middle could
use this issue to cause applications using libgadu to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 13.10:
  libgadu3                        1:1.11.2-1ubuntu1.2

Ubuntu 12.04 LTS:
  libgadu3                        1:1.11.1-1ubuntu0.2

After a standard system update you need to restart your session to make all
the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-2215-1
  CVE-2014-3775

Package Information:
  https://launchpad.net/ubuntu/+source/libgadu/1:1.11.2-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/libgadu/1:1.11.1-1ubuntu0.2