MySQL: Denial of Service

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200711-25 / mysql
Release Date	November 18, 2007
Latest Revision	November 18, 2007: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-db/mysql	< 5.0.44-r2	>= 5.0.44-r2	All supported architectures

Related bugreports: #198988

Synopsis

A Denial of Service vulnerability was found in MySQL.

2. Impact Information

Background

MySQL is a popular multi-threaded, multi-user SQL server.

Description

Joe Gallo and Artem Russakovskii reported an error in the convert_search_mode_to_innobase() function in ha_innodb.cc in the InnoDB engine that is leading to a failed assertion when handling CONTAINS operations.

Impact

A remote authenticated attacker with ALTER privileges could send a specially crafted request to a vulnerable database server possibly leading to a Denial of Service.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All MySQL users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-db/mysql-5.0.44-r2"

4. References

CVE-2007-5925

Updated November 18, 2007

Summary: This is a Gentoo Linux Security Advisory

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