SQL injection vulnerability in mysql/mysql-auth.pl in the mod_authnz_external module 3.2.5 and earlier for the Apache HTTP Server allows remote attackers to execute arbitrary SQL commands via the user field.
https://exchange.xforce.ibmcloud.com/vulnerabilities/68799
http://www.securityfocus.com/bid/48653
http://www.openwall.com/lists/oss-security/2011/07/12/17
http://www.openwall.com/lists/oss-security/2011/07/12/10
http://www.debian.org/security/2011/dsa-2279
http://secunia.com/advisories/45240
http://code.google.com/p/mod-auth-external/issues/detail?id=5