CAN-2003-0073: The mysql package contains a bug whereby dynamically allocated memory is freed more than once, which could be deliberately triggered by an attacker to cause a crash, resulting in a denial of service condition. In order to exploit this vulnerability, a valid username and password combination for access to the MySQL server is required.
CAN-2003-0150: The mysql package contains a bug whereby a malicious user, granted certain permissions within mysql, could create a configuration file which would cause the mysql server to run as root, or any other user, rather than the mysql user.
For the stable distribution (woody) both problems have been fixed in version 3.23.49-8.4.
The old stable distribution (potato) is only affected by CAN-2003-0150, and this has been fixed in version 3.22.32-6.4.
For the unstable distribution (sid), CAN-2003-0073 was fixed in version 4.0.12-2, and CAN-2003-0150 will be fixed soon.
We recommend that you update your mysql package.
MD5 checksums of the listed files are available in the original advisory.