iDEFENSE Security Advisory 10.27.04 – Remote exploitation of a buffer overflow vulnerability in Simon Tatham’s PuTTY can allow attackers to execute arbitrary code. The vulnerability specifically exists due to insufficient bounds checking on SSH2_MSG_DEBUG packets.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/34872/10.27.04.txt
Source: https://packetstormsecurity.com/files/34872/iDEFENSE-Security-Advisory-2004-10-27.t.html