CVE-2012-4067
Walrus in Eucalyptus before 3.2.2 allows remote attackers to cause a denial of service (memory, thread, and CPU consumption) via a crafted XML message containing a DTD, as demonstrated by a bucket-logging request.
Date published : 2013-09-16
http://www.eucalyptus.com/resources/security/advisories/esa-09