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.
Metrics
CVSS 2.0 5.0/10
AV:N/AC:L/Au:N/C:P/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- 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
- 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
Timeline
- Published
- Dec 3, 2012
- Last modified
- Jun 16, 2026
- NVD status
- Modified