6.8 - RHSA-2009:1490

Problem Description:

An updated squirrelmail package that fixes several security issues is now available for Red Hat Enterprise Linux 3, 4, and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - noarch Red Hat Desktop version 3 - noarch Red Hat Enterprise Linux (v. 5 server) - noarch Red Hat Enterprise Linux AS version 3 - noarch Red Hat Enterprise Linux AS version 4 - noarch Red Hat Enterprise Linux Desktop version 4 - noarch Red Hat Enterprise Linux ES version 3 - noarch Red Hat Enterprise Linux ES version 4 - noarch Red Hat Enterprise Linux WS version 3 - noarch Red Hat Enterprise Linux WS version 4 - noarch

3. Description:

SquirrelMail is a standards-based webmail package written in PHP.

Form submissions in SquirrelMail did not implement protection against Cross-Site Request Forgery (CSRF) attacks. If a remote attacker tricked a user into visiting a malicious web page, the attacker could hijack that user's authentication, inject malicious content into that user's preferences, or possibly send mail without that user's permission. (CVE-2009-2964)

Users of SquirrelMail should upgrade to this updated package, which contains a backported patch to correct these issues.

4. Solution:

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

517312 - CVE-2009-2964 squirrelmail: CSRF issues in all forms