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[ GLSA 200608-01 ] Apache: Off-by-one flaw in mod_rewrite
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GLSA
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PostPosted: Wed Aug 02, 2006 9:04 am    Post subject: [ GLSA 200608-01 ] Apache: Off-by-one flaw in mod_rewrite Reply with quote

Gentoo Linux Security Advisory

Title: Apache: Off-by-one flaw in mod_rewrite (GLSA 200608-01)
Severity: high
Exploitable: remote
Date: August 01, 2006
Updated: December 30, 2007
Bug(s): #141986
ID: 200608-01

Synopsis

A flaw in mod_rewrite could result in a Denial of Service or the execution of arbitrary code.

Background

The Apache HTTP server is one of the most popular web servers on the Internet. The Apache module mod_rewrite provides a rule-based engine to rewrite requested URLs on the fly.

Affected Packages

Package: www-servers/apache
Vulnerable: < 2.0.58-r2
Unaffected: >= 1.3.34-r14 < 1.3.35
Unaffected: >= 1.3.37 < 1.3.38
Unaffected: >= 2.0.58-r2
Architectures: All supported architectures


Description

An off-by-one flaw has been found in Apache's mod_rewrite module by Mark Dowd of McAfee Avert Labs. This flaw is exploitable depending on the types of rewrite rules being used.

Impact

A remote attacker could exploit the flaw to cause a Denial of Service or execution of arbitrary code. Note that Gentoo Linux is not vulnerable in the default configuration.

Workaround

There is no known workaround at this time.

Resolution

All Apache users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose www-servers/apache


References

CVE-2006-3747
Apache HTTP Server 2.0 Announcement
Apache HTTP Server 1.3 Announcement


Last edited by GLSA on Tue Nov 18, 2008 4:18 am; edited 5 times in total
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