Bugtraq: Cerulean Studios Trillian 0.74i Buffer Overflow in MSN module exploit

["Jérôme" ATHIAS <jerome.athias () caramail com>]

DATE
08/09/2004

PRODUCT
Trillian is a chat client currently supporting IRC, AIM, ICQ, MSN Messenger, and Yahoo! Messenger. (from readme.txt 
file)

DETAILS
A buffer overflow vulnerability in basic edition version 0.74i (latest version) occours in the MSN module when 
receiving a string of around 4096 bytes ended with a newline character from an MSN messenger server. This vulnerability 
is remotely exploitable but require the use of the man-in-the-middle technique.

EXPLOIT
See attached file trillianbof.c

VENDOR STATUS
I notified this vulnerability to the vendor on 31/08/04 but they haven't reply.

http://unsecure.altervista.org/security/trillian.htm

Regards,
Jérôme ATHIAS