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Apache 2.0: Denial of Service vulnerability

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200508-15 / apache
Release Date August 25, 2005
Latest Revision December 30, 2007: 03
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
www-servers/apache < 2.0.54-r9 >= 2.0.54-r9, < 2.0 All supported architectures

Related bugreports: #102991

Synopsis

A bug in Apache may allow a remote attacker to perform a Denial of Service attack.

2.  Impact Information

Background

The Apache HTTP Server Project is a featureful, freely-available HTTP (Web) server.

Description

Filip Sneppe discovered that Apache improperly handles byterange requests to CGI scripts.

Impact

A remote attacker may access vulnerable scripts in a malicious way, exhausting all RAM and swap space on the server, resulting in a Denial of Service of the Apache server.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All apache users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/apache-2.0.54-r9"

4.  References



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Page updated August 25, 2005

Summary: This is a Gentoo Linux Security Advisory

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