jabberd14 1.6.1.1 and earlier does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.
https://exchange.xforce.ibmcloud.com/vulnerabilities/67771
http://www.securityfocus.com/bid/48070
http://www.debian.org/security/2011/dsa-2249
http://secunia.com/advisories/44795
http://packages.debian.org/changelogs/pool/main/j/jabberd14/jabberd14_1.6.1.1-5+squeeze1/changelog