GLSA 200705-04: Apache mod_perl: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	Apache mod_perl: Denial of Service
Date:	05/02/2007
Bugs:	#172676
ID:	200705-04

Synopsis

The mod_perl Apache module is vulnerable to a Denial of Service when processing regular expressions.

Background

Mod_perl is an Apache module that embeds the Perl interpreter within the server, allowing Perl-based web-applications to be created.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
www-apache/mod_perl	< 2.0.3-r1	>= 2.0.3-r1	All supported architectures

Description

Alex Solvey discovered that the "path_info" variable used in file RegistryCooker.pm (mod_perl 2.x) or file PerlRun.pm (mod_perl 1.x), is not properly escaped before being processed.

Impact

A remote attacker could send a specially crafted URL to the vulnerable server, possibly resulting in a massive resource consumption.

Workaround

There is no known workaround at this time.

Resolution

All mod_perl 1.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apache/mod_perl-1.30"

All mod_perl 2.x users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apache/mod_perl-2.0.3-r1"

References

CVE-2007-1349

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200705-04.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.