There is a remote buffer overflow in the C2S module of Jabberd 2.x which allows attackers to crash the Jabberd sever and possibly execute arbitrary code.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/35156/ADLAB-04002.txt
Source: https://packetstormsecurity.com/files/35156/ADLAB-04002.txt.html