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Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA805] DSA-805-1 apache2

Vulnerability Assessment Details

[DSA805] DSA-805-1 apache2

Vulnerability Assessment Summary
DSA-805-1 apache2

Detailed Explanation for this Vulnerability Assessment

Several problems have been discovered in Apache2, the next generation,
scalable, extendable web server. The Common Vulnerabilities and
Exposures project identifies the following problems:
Marc Stern discovered an off-by-one error in the mod_ssl
Certificate Revocation List (CRL) verification callback. When
Apache is configured to use a CRL this can be used to cause a
denial of service.
A vulnerability has been discovered in the Apache web server.
When it is acting as an HTTP proxy, it permits remote attackers to
poison the web cache, bypass web application firewall protection,
and conduct cross-site scripting attacks, which causes Apache to
incorrectly handle and forward the body of the request.
A problem has been discovered in mod_ssl, which provides strong
cryptography (HTTPS support) for Apache that permits remote
attackers to bypass access restrictions.
The byte-range filter in Apache 2.0 permits remote attackers to
cause a denial of service via an HTTP header with a large Range
field.
The old stable distribution (woody) does not contain Apache2 packages.
For the stable distribution (sarge) these problems have been fixed in
version 2.0.54-5.
For the unstable distribution (sid) these problems have been fixed in
version 2.0.54-5.
We recommend that you upgrade your apache2 packages.

Solution : http://www.debian.org/security/2005/dsa-805
Network Security Threat Level: High

Networks Security ID: 14660

Vulnerability Assessment Copyright: This script is (C) 2007 Michel Arboi

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