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Gentoo Linux Security Advisory GLSA 200407-18
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http://security.gentoo.org/
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Severity: Normal
Title: mod_ssl: Format string vulnerability
Date: July 22, 2004
Bugs: #57379
ID: 200407-18
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Synopsis
========
A bug in mod_ssl may allow a remote attacker to execute arbitrary code
when Apache is configured to use mod_ssl and mod_proxy.
Background
==========
mod_ssl provides Secure Sockets Layer encryption and authentication to
Apache 1.3.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-www/mod_ssl <= 2.8.18 >= 2.8.19
Description
===========
A bug in ssl_engine_ext.c makes mod_ssl vulnerable to a ssl_log()
related format string vulnerability in the mod_proxy hook functions.
Impact
======
Given the right server configuration, an attacker could execute code as
the user running Apache, usually "apache".
Workaround
==========
A server should not be vulnerable if it is not using both mod_ssl and
mod_proxy. Otherwise there is no workaround other than to disable
mod_ssl.
Resolution
==========
All mod_ssl users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=net-www/mod_ssl-2.8.19"
# emerge ">=net-www/mod_ssl-2.8.19"
References
==========
[ 1 ] mod_ssl Announcement
http://marc.theaimsgroup.com/?l=apache-modssl&m=109001100906749&w=2
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200407-18.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@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/1.0
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