Ubuntu 6.06 LTS / 6.10 / 7.04 : mysql-dfsg-5.0 vulnerabilities (USN-528-1)
Medium Nessus Plugin ID 28133
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionNeil Kettle discovered that MySQL could be made to dereference a NULL pointer and divide by zero. An authenticated user could exploit this with a crafted IF clause, leading to a denial of service.
Victoria Reznichenko discovered that MySQL did not always require the DROP privilege. An authenticated user could exploit this via RENAME TABLE statements to rename arbitrary tables, possibly gaining additional database access. (CVE-2007-2691)
It was discovered that MySQL could be made to overflow a signed char during authentication. Remote attackers could use crafted authentication requests to cause a denial of service. (CVE-2007-3780)
Phil Anderton discovered that MySQL did not properly verify access privileges when accessing external tables. As a result, authenticated users could exploit this to obtain UPDATE privileges to external tables. (CVE-2007-3782)
In certain situations, when installing or upgrading mysql, there was no notification that the mysql root user password needed to be set. If the password was left unset, attackers would be able to obtain unrestricted access to mysql. This is now checked during mysql start-up.
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected packages.