Open Ticket Request System (OTRS) 2.3.x before 2.3.6 and 2.4.x before 2.4.8 does not properly handle the matching of Perl regular expressions against HTML e-mail messages, which allows remote attackers to cause a denial of service (CPU consumption) via a large message, a different vulnerability than CVE-2010-2080.
https://exchange.xforce.ibmcloud.com/vulnerabilities/61869
http://www.securityfocus.com/bid/43264
http://security-tracker.debian.org/tracker/CVE-2010-2080
http://secunia.com/advisories/41381
http://otrs.org/advisory/OSA-2010-02-en/
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html