CVE-2012-5615

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 14.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-12-03 · updated 2026-06-16
Weakness: CWE-200

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.

Affected products

MariaDB: 5.1.66, 5.2.13, 5.3.11, 5.5.28a
MySQL Server: 5.5.19

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

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