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Gentoo Linux Security Advisory                           GLSA 200411-18
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: Apache 2.0: Denial of Service by memory consumption
      Date: November 10, 2004
      Bugs: #70138
        ID: 200411-18

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Synopsis
=======
A flaw in Apache 2.0 could allow a remote attacker to 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
    -------------------------------------------------------------------
  1  net-www/apache      < 2.0.52-r1                      >= 2.0.52-r1
                                                                 < 2.0

Description
==========
Chintan Trivedi discovered a vulnerability in Apache httpd 2.0 that is
caused by improper enforcing of the field length limit in the
header-parsing code.

Impact
=====
By sending a large amount of specially-crafted HTTP GET requests a
remote attacker could cause a Denial of Service of the targeted system.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All Apache 2.0 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-www/apache-2.0.52-r1"

References
=========
  [ 1 ] CAN-2004-0942
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0942
  [ 2 ] Security vulnerabilities in Apache httpd 2.0
        https://httpd.apache.org/security/vulnerabilities_20.html

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200411-18

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/.

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.

https://creativecommons.org/licenses/by-sa/2.0/