Important: squirrelmail security update

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

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

SquirrelMail is an easy-to-configure, standards-based, webmail package
written in PHP. It includes built-in PHP support for the IMAP and SMTP
protocols, and pure HTML 4.0 page-rendering (with no JavaScript required)
for maximum browser-compatibility, strong MIME support, address books, and
folder manipulation.

The Red Hat SquirrelMail packages provided by the RHSA-2009:0010 advisory
introduced a session handling flaw. Users who logged back into SquirrelMail
without restarting their web browsers were assigned fixed session
identifiers. A remote attacker could make use of that flaw to hijack user
sessions. (CVE-2009-0030)

SquirrelMail users should upgrade to this updated package, which contains a
patch to correct this issue. As well, all users who used affected versions
of SquirrelMail should review their preferences.

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

480224 - Squirrelmail session management broken by security backport
480488 - CVE-2009-0030 squirrelmail: session management flaw

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0030
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1580
http://www.redhat.com/security/updates/classification/#important