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.
2012-12-03T12:49:43.830
2025-04-11T00:51:21.963
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | mariadb | mariadb | 5.1.66 | Yes |
Application | mariadb | mariadb | 5.2.13 | Yes |
Application | mariadb | mariadb | 5.3.11 | Yes |
Application | mariadb | mariadb | 5.5.28a | Yes |
Application | oracle | mysql | 5.5.19 | Yes |