An Apache update has been released for Gentoo Linux
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Gentoo Linux Security Advisory GLSA 200406-16
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http://security.gentoo.org/
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Severity: Normal
Title: Apache 1.3: Buffer overflow in mod_proxy
Date: June 21, 2004
Bugs: #53544
ID: 200406-16
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Synopsis
=======
A bug in mod_proxy may allow a remote attacker to execute arbitrary code when Apache is configured a certain way.
Background
=========
The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems. The goal of this project is to provide a secure, efficient and extensible server that provides services in tune with the current HTTP standards.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-www/apache = 1.3.31-r2
Description
==========
A bug in the proxy_util.c file may lead to a remote buffer overflow. To trigger the vulnerability an attacker would have to get mod_proxy to connect to a malicous server which returns an invalid (negative) Content-Length.
Impact
=====
An attacker could cause a Denial of Service as the Apache child handling the request, which will die and under some circumstances execute arbitrary code as the user running Apache, usually "apache".
Workaround
=========
There is no known workaround at this time. All users are encouraged to upgrade to the latest available version:
Resolution
=========
Apache 1.x users should upgrade to the latest version of Apache:
# emerge sync
# emerge -pv ">=net-www/apache-1.3.31-r2"
# emerge ">=net-www/apache-1.3.31-r2"
References
=========
[ 1 ] Georgi Guninski security advisory #69, 2004
http://www.guninski.com/modproxy1.html
[ 2 ] CAN-2004-0492
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0492
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200406-16.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 http://bugs.gentoo.org.
License
======
Copyright 2004 Gentoo Technologies, 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
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200406-16
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: Apache 1.3: Buffer overflow in mod_proxy
Date: June 21, 2004
Bugs: #53544
ID: 200406-16
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=======
A bug in mod_proxy may allow a remote attacker to execute arbitrary code when Apache is configured a certain way.
Background
=========
The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems. The goal of this project is to provide a secure, efficient and extensible server that provides services in tune with the current HTTP standards.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-www/apache = 1.3.31-r2
Description
==========
A bug in the proxy_util.c file may lead to a remote buffer overflow. To trigger the vulnerability an attacker would have to get mod_proxy to connect to a malicous server which returns an invalid (negative) Content-Length.
Impact
=====
An attacker could cause a Denial of Service as the Apache child handling the request, which will die and under some circumstances execute arbitrary code as the user running Apache, usually "apache".
Workaround
=========
There is no known workaround at this time. All users are encouraged to upgrade to the latest available version:
Resolution
=========
Apache 1.x users should upgrade to the latest version of Apache:
# emerge sync
# emerge -pv ">=net-www/apache-1.3.31-r2"
# emerge ">=net-www/apache-1.3.31-r2"
References
=========
[ 1 ] Georgi Guninski security advisory #69, 2004
http://www.guninski.com/modproxy1.html
[ 2 ] CAN-2004-0492
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0492
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200406-16.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 http://bugs.gentoo.org.
License
======
Copyright 2004 Gentoo Technologies, 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
