MySQL: Denial of Service

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200608-09 / mysql
Release Date	August 06, 2006
Latest Revision	August 07, 2006: 02
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-db/mysql	< 4.1.21	>= 4.1.21, < 4.1.0	All supported architectures

Related bugreports: #142429

Synopsis

An authenticated user can crash MySQL through invalid parameters to the date_format function.

2. Impact Information

Background

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

Description

Jean-David Maillefer discovered a format string vulnerability in time.cc where MySQL fails to properly handle specially formatted user input to the date_format function.

Impact

By specifying a format string as the first parameter to the date_format function, an authenticated attacker could cause MySQL to crash, resulting in 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 --verbose --oneshot ">=dev-db/mysql-4.1.21"

4. References

CVE-2006-3469

Updated August 06, 2006

Summary: This is a Gentoo Linux Security Advisory

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