GLSA 200310-03: Apache: multiple buffer overflows

http://security.gentoo.org/

Severity:	normal
Title:	Apache: multiple buffer overflows
Date:	10/28/2003
Bugs:	#32194
ID:	200310-03

Synopsis

Multiple stack-based buffer overflows in mod_alias and mod_rewrite can allow execution of arbitrary code and cause a denial of service.

Background

The Apache HTTP Server is one of the most popular web servers on the Internet.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
www-servers/apache	< 1.3.29	>= 1.3.29	All supported architectures

Description

Multiple stack-based buffer overflows in mod_alias and mod_rewrite allow attackers who can create or edit configuration files including .htaccess files, to cause a denial of service and execute arbitrary code via a regular expression containing more than 9 captures.

Impact

An attacker may cause a denial of service or execute arbitrary code with the privileges of the user that is running apache.

Workaround

There is no known workaround at this time, other than to disable both mod_alias and mod_rewrite.

Resolution

It is recommended that all Gentoo Linux users who are running net-misc/apache 1.x upgrade:

    # emerge sync
    # emerge -pv apache
    # emerge '>=www-servers/apache-1.3.29'
    # emerge clean
    # /etc/init.d/apache restart

References

CAN-2003-0542 (under review at time of GLSA)

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200310-03.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.