Mandriva Linux Security Advisory MDKSA-2006-098: PostgreSQL 8.1.x before 8.1.4, 8.0.x before 8.0.8, 7.4.x before 7.4.13, 7.3.x before 7.3.15, and earlier versions allows context-dependent attackers to bypass SQL injection protection methods in applications via invalid encodings of multibyte characters, aka one variant of “Encoding-Based SQL Injection.”
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/47166/MDKSA-2006-098.txt
Source: https://packetstormsecurity.com/files/47166/Mandriva-Linux-Security-Advisory-2006.098.html