|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.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)|
The information below is based on the following data on fixed versions.
- mariadb-5.5 <not-affected> (Fixed before initial upload to archive)
[squeeze] - mysql-5.1 <no-dsa> (Minor issue, currently not fixed in MySQL, can be included once fixed in 5.1.x)