Possible XSS in MagicHTML (IE only) http://www.squirrelmail.org/security/issue/2006-02-10 (Text taken from the above URL) The MagicHTML filter for incoming HTML email did not correctly disregard comments (/* */) inserted in style sheets ("u/* */rl"). It also accepted "u\rl" as "url" in styles. These allow a malicious user to break the privacy of the user by having them request an item from a remote site when reading the mail. This happens only in browsers that parse this invalid style, only one known is Internet Explorer. source=secunia,reported=20060222,public=20060210
This issue should also affect RHEL3
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2006-0283.html