USN-338-1: MySQL vulnerabilities
Publication date
5 September 2006
Overview
MySQL vulnerabilities
Releases
Details
Dmitri Lenev discovered that arguments of setuid SQL functions were
evaluated in the security context of the functions' definer instead of
its caller. An authenticated user with the privilege to call such a
function could exploit this to execute arbitrary statements with the
privileges of the definer of that function. (CVE-2006-4227)
Peter Gulutzan reported a potentially confusing situation of the MERGE
table engine. If an user creates a merge table, and the administrator
later revokes privileges on the original table only (without changing
the privileges on the merge table), that user still has access to the
data by using the merge table. This is intended behaviour, but might
be undesirable in some installations; this update introduces a new
server option "--skip-merge" which disables the MERGE engine
completely. (CVE-2006-4031)
Dmitri Lenev discovered that arguments of setuid SQL functions were
evaluated in the security context of the functions' definer instead of
its caller. An authenticated user with the privilege to call such a
function could exploit this to execute arbitrary statements with the
privileges of the definer of that function. (CVE-2006-4227)
Peter Gulutzan reported a potentially confusing situation of the MERGE
table engine. If an user creates a merge table, and the administrator
later revokes privileges on the original table only (without changing
the privileges on the merge table), that user still has access to the
data by using the merge table. This is intended behaviour, but might
be undesirable in some installations; this update introduces a new
server option "--skip-merge" which disables the MERGE engine
completely. (CVE-2006-4031)
Update instructions
In general, a standard system upgrade is sufficient to effect the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 6.06 dapper | mysql-server-5.0 – 5.0.22-0ubuntu6.06.2 | ||
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.