jabberd -- SASL Negotiation Denial of Service Vulnerability

Secunia reports:

A vulnerability has been reported in jabberd, which can be
exploited by malicious people to cause a DoS (Denial of
Service).
The vulnerability is caused due to an error within the handling
of SASL negotiation. This can be exploited to cause a crash by
sending a “response” stanza before an “auth” stanza.