A new squirrelmail package that fixes security issues is now available for CentOS Linux 3, 4 and 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team.
SquirrelMail is a standards-based webmail package written in PHP4. Several HTML filtering bugs were discovered in SquirrelMail. An attacker could inject arbitrary JavaScript leading to cross-site scripting attacks by sending an e-mail viewed by a user within SquirrelMail. (CVE-2007-1262) Squirrelmail did not sufficiently check arguments to IMG tags in HTML e-mail messages. This could be exploited by an attacker by sending arbitrary e-mail messages on behalf of a squirrelmail user tricked into opening a maliciously crafted HTML e-mail message. (CVE-2007-2589) Users of SquirrelMail should upgrade to this erratum package, which contains a backported patch to correct these issues.
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