CVE-2012-5615 Information

Description

Oracle MySQL 5.5.38 and earlier 5.6.19 and earlier and MariaDB 5.5.28a 5.3.11 5.2.13 5.1.66 and possibly other versions generates different error messages with different time delays depending on whether a user name exists which allows remote attackers to enumerate valid usernames.

Reference

http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00016.html http://seclists.org/fulldisclosure/2012/Dec/9 http://secunia.com/advisories/53372 http://security.gentoo.org/glsa/glsa-201308-06.xml http://www.mandriva.com/security/advisories?name=MDVSA-2013:102 http://www.openwall.com/lists/oss-security/2012/12/02/3 http://www.openwall.com/lists/oss-security/2012/12/02/4 http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html https://mariadb.atlassian.net/browse/MDEV-3909