[ GLSA 200602-03 ] Apache: Multiple vulnerabilities

[GLSA]

Gentoo Linux Security Advisory

Title: Apache: Multiple vulnerabilities (GLSA 200602-03)
Severity: normal
Exploitable: remote
Date: February 06, 2006
Updated: December 30, 2007
Bug(s): #115324, #118875
ID: 200602-03

Synopsis

Apache can be exploited for cross-site scripting attacks and is vulnerable to a Denial of Service attack.

Background

The Apache HTTP server is one of the most popular web servers on the Internet. mod_imap provides support for server-side image maps; mod_ssl provides secure HTTP connections.

Affected Packages

Package: www-servers/apache
Vulnerable: < 2.0.55-r1
Unaffected: >= 2.0.55-r1
Unaffected: >= 2.0.54-r16 < 2.0.55
Unaffected: = 1.3.34-r2
Unaffected: >= 1.3.34-r11 < 1.3.35
Unaffected: >= 1.3.37 < 1.3.38
Architectures: All supported architectures


Description

Apache's mod_imap fails to properly sanitize the "Referer" directive of imagemaps in some cases, leaving the HTTP Referer header unescaped. A flaw in mod_ssl can lead to a NULL pointer dereference if the site uses a custom "Error 400" document. These vulnerabilities were reported by Marc Cox and Hartmut Keil, respectively.

Impact

A remote attacker could exploit mod_imap to inject arbitrary HTML or JavaScript into a user's browser to gather sensitive information. Attackers could also cause a Denial of Service on hosts using the SSL module (Apache 2.0.x only).

Workaround

There is no known workaround at this time.

Resolution

All Apache users should upgrade to the latest version, depending on whether they still use the old configuration style (/etc/apache/conf/*.conf) or the new one (/etc/apache2/httpd.conf). 2.0.x users, new style config: