Description
An ActiveX control in YahooBridgeLib.dll for Yahoo! Messenger 9.0.0.2162, and possibly other 9.0 versions, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by calling the RegisterMe method with a long argument.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 2
- Yahoo! Messenger 9.0.0.2162 - 'YahooBridgeLib.dll' ActiveX Control Remote Denial of Service EDB-10092 · dos · Nov 12, 2009 · verified
- Yahoo! Messenger 9 - 'YahooBridgeLib.dll' ActiveX Control Remote Denial of Service EDB-33350 · dos · Nov 12, 2009 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20091112 Yahoo Messenger 9 ActiveX DoS (Null Pointer) Vulnerability mailing-list
- yahoo-messenger-activex-dos(54263) vdb-entry
- 37007 vdb-entry