Mandriva Linux Security Advisory MDKSA-2006-194: A vulnerability in PostgreSQL 8.1.x allowed remote authenticated users to cause a Denial of Service (daemon crash) via certain aggregate functions in an UPDATE statement which were not handled correctly
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/51555/MDKSA-2006-194.txt
Source: https://packetstormsecurity.com/files/51555/Mandriva-Linux-Security-Advisory-2006.194.html