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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Check for the version of the mod_ssl packages
Detailed Explanation for this Vulnerability Assessment
Updated mod_ssl packages are now available for Red Hat Advanced Server.
These updates incorporate a fix for an incorrect bounds check in versions
of mod_ssl up to and including version 2.8.9.
The mod_ssl module provides strong cryptography for the Apache Web
server via the Secure Sockets Layer (SSL) and Transport Layer Security
(TLS) protocols. Versions of mod_ssl prior to 2.8.10 are subject to a
single NULL overflow that can cause arbitrary code execution.
In order to exploit this vulnerability, the Apache Web server has to be
configured to permit overriding of configuration settings on a per-directory
basis, and untrusted local users must be able to modify a directory in
which the server is configured to permit overriding. The local attacker may
then become the user that Apache is running as (usually 'www' or 'nobody').
Note that regardless of this bug, local users can obtain the same
rights if the server is configured to permit them to create CGI scripts
which run as the Web server user, or if PHP is enabled but not configured
in "safe mode".
The errata packages contain versions of mod_ssl that have been patched and
are not vulnerable to this issue.
Please note that you must restart the httpd daemon to use the updated
module. For instructions on doing this, see the bottom of the Solutions
Solution : http://rhn.redhat.com/errata/RHSA-2002-136.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
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