Horde: Multiple vulnerabilities

Background

Horde is a web application framework written in PHP.

Description

Multiple vulnerabilities have been discovered in Horde:

• Stefan Esser of Sektion1 reported an error within the form library when handling image form fields (CVE-2009-3236).
• Martin Geisler and David Wharton reported that an error exists in the MIME viewer library when viewing unknown text parts and the preferences system in services/prefs.php when handling number preferences (CVE-2009-3237).

Impact

A remote authenticated attacker could exploit these vulnerabilities to overwrite arbitrary files on the server, provided that the user has write permissions. A remote authenticated attacker could conduct Cross-Site Scripting attacks.

Workaround

There is no known workaround at this time.

Resolution

All Horde users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-apps/horde-3.3.5"

All Horde webmail users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-apps/horde-webmail-1.2.4"

All Horde groupware users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-apps/horde-groupware-1.2.4"