==========================================================Ubuntu Security Notice USN-948-1 June 03, 2010
A security issue affects the following Ubuntu releases:
Ubuntu 6.06 LTS
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 6.06 LTS:
In general, a standard system update will make all the necessary changes.
It was discovered that GnuTLS did not always properly verify the hash
algorithm of X.509 certificates. If an application linked against GnuTLS
processed a crafted certificate, an attacker could make GnuTLS dereference
a NULL pointer and cause a DoS via application crash.