Mandriva Linux Security Advisory – MDKSA-2006:066: Off-by-one error in the sql_error function in sql_unixodbc.c in FreeRADIUS might allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by causing the external database query to fail.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/45236/MDKSA-2006-066.txt
Source: https://packetstormsecurity.com/files/45236/Mandriva-Linux-Security-Advisory-2006.066.html