CVE-2011-4078: Undefined Security Weakness

include/iniset.php in Roundcube Webmail 0.5.4 and earlier, when PHP 5.3.7 or 5.3.8 is used, allows remote attackers to trigger a GET request for an arbitrary URL, and cause a denial of service resource consumption and inbox outage, via a Subject header containing only a URL, a related issue to...