The remote host is missing an update to squirrelmail announced via advisory MDVSA-2009:053.
To upgrade automatically use MandrakeUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you. https://secure1.securityspace.com/smysecure/catid.html?in=MDVSA-2009:053
A vulnerability has been identified and corrected in squirrelmail: Squirrelmail 1.4.15 does not set the secure flag for the session cookie in an https session, which can cause the cookie to be sent in http requests and make it easier for remote attackers to capture this cookie (CVE-2008-3663). Additionally many of the bundled plugins has been upgraded. The localization has also been upgraded. Basically this is a syncronization with the latest squirrelmail package found in Mandriva Cooker. The rpm changelog will reveal all the changes (rpm -q --changelog squirrelmail). The updated packages have been upgraded to the latest version of squirrelmail to prevent this. Affected: Corporate 4.0