MSN Chat ActiveX Control buffer overflow
Microsoft MSN Chat Control
Microsoft MSN Messenger 4.5 and 4.6, which includes the MSN Chat control
Microsoft Exchange Instant Messenger 4.5 and 4.6, which includes the MSN Chat control
A vulnerability has been discovered in the parameter handling of the MSN Messenger OCX. By exploiting this vulnerability, an attacker can supply and execute code on any machine on which MSN Messenger with the activex is installed.
Vendor (Microsoft) response
A patch is available to fix this vulnerability. Please read the Security Bulletin (Microsoft Security Bulletin MS02-022):
A buffer overflow exists in the ActiveX control that may permit a remote attacker to execute arbitrary code on the system with the privileges of the current user. CERT Advisory CA-2002-13 can be read here:
Original eEye vulnerability report can be seen on the link below.
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