sql/password.c in Oracle MySQL 5.1.x before 5.1.63, 5.5.x before 5.5.24, and 5.6.x before 5.6.6, and MariaDB 5.1.x before 5.1.62, 5.2.x before 5.2.12, 5.3.x before 5.3.6, and 5.5.x before 5.5.23, when running in certain environments with certain implementations of the memcmp function, allows remote attackers to bypass authentication by repeatedly authenticating with the same incorrect password, which eventually causes a token comparison to succeed due to an improperly-checked return value.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mysql | Oracle | 5.1.51 (including) | 5.1.51 (including) |
| Mysql | Oracle | 5.1.52 (including) | 5.1.52 (including) |
| Mysql | Oracle | 5.1.52-sp1 (including) | 5.1.52-sp1 (including) |
| Mysql | Oracle | 5.1.53 (including) | 5.1.53 (including) |
| Mysql | Oracle | 5.1.54 (including) | 5.1.54 (including) |
| Mysql | Oracle | 5.1.55 (including) | 5.1.55 (including) |
| Mysql | Oracle | 5.1.56 (including) | 5.1.56 (including) |
| Mysql | Oracle | 5.1.57 (including) | 5.1.57 (including) |
| Mysql | Oracle | 5.1.58 (including) | 5.1.58 (including) |
| Mysql | Oracle | 5.1.59 (including) | 5.1.59 (including) |
| Mysql | Oracle | 5.1.60 (including) | 5.1.60 (including) |
| Mysql | Oracle | 5.1.61 (including) | 5.1.61 (including) |
| Red Hat Enterprise Linux 6 | RedHat | mysql-0:5.1.66-1.el6_3 | * |
| Mysql-5.1 | Ubuntu | natty | * |
| Mysql-5.1 | Ubuntu | oneiric | * |
| Mysql-5.1 | Ubuntu | upstream | * |
| Mysql-5.5 | Ubuntu | devel | * |
| Mysql-5.5 | Ubuntu | precise | * |
| Mysql-5.5 | Ubuntu | upstream | * |
| Mysql-cluster-7.0 | Ubuntu | lucid | * |
| Mysql-cluster-7.0 | Ubuntu | natty | * |
| Mysql-cluster-7.0 | Ubuntu | oneiric | * |
| Mysql-dfsg-5.0 | Ubuntu | hardy | * |
| Mysql-dfsg-5.1 | Ubuntu | lucid | * |
| Mysql-dfsg-5.1 | Ubuntu | upstream | * |