net/IOService.java in Tigase before 5.2.1 does not properly restrict the processing of compressed XML elements, which allows remote attackers to cause a denial of service (resource consumption) via a crafted XMPP stream, aka an “xmppbomb” attack.
openwall.com/lists/oss-security/2014/04/07/7
openwall.com/lists/oss-security/2014/04/09/1
www.tigase.org/content/uncontrolled-resource-consumption-highly-compressed-xmpp-messages
xmpp.org/resources/security-notices/uncontrolled-resource-consumption-with-highly-compressed-xmpp-stanzas/
projects.tigase.org/issues/1780
projects.tigase.org/projects/tigase-server/repository/revisions/7f5af2f8c5b97bbf9def66fbb9dd47746a7ac292