Mandriva Linux Security Advisory 2009-251 – The core server component in PostgreSQL 8.4 before 8.4.1, 8.3 before 8.3.8, and 8.2 before 8.2.14 allows remote authenticated users to cause a denial of service (backend shutdown) by re-LOAD-ing libraries from a certain plugins directory. The core server component in PostgreSQL 8.4 before 8.4.1, 8.3 before 8.3.8, 8.2 before 8.2.14, 8.1 before 8.1.18, 8.0 before 8.0.22, and 7.4 before 7.4.26 does not use the appropriate privileges for the (1) RESET ROLE and (2) RESET SESSION AUTHORIZATION operations, this is due to an incomplete fix for CVE-2007-6600. The core server component in PostgreSQL 8.3 before 8.3.8 and 8.2 before 8.2.14, when using LDAP authentication with anonymous binds, allows remote attackers to bypass authentication via an empty password. This update provides a fix for this vulnerability. Packages for 2008.0 are being provided due to extended support for Corporate products.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/83560/MDVSA-2009-251-1.txt
Source: https://packetstormsecurity.com/files/83560/Mandriva-Linux-Security-Advisory-2009-251.html