Yahoo! Messenger Webcam Viewer ActiveX control buffer overflow
| yahoo-webcam-viewer-bo (34759) |  High Risk |
Description:
The Yahoo! Messenger Webcam Upload ActiveX control (ywcvwr.dll) is vulnerable to a stack-based buffer overflow. By persuading a victim to visit a specially-crafted Web page that passes an overly long "Server" property to the Receive() method, a remote attacker could overflow a buffer and execute arbitrary code on the system with the privileges of the user or cause the victim's browser to crash.
Platforms Affected:
- Yahoo, Webcam ActiveX Control 2.0.1.4
Remedy:
Upgrade to the latest version of Yahoo! Messenger (8.1.0.401 or later), available from the Yahoo! Messenger Web site. See References.
Consequences:
Gain Access
References:
- eEye Digital Security Advisory AD20070608, Yahoo! Webcam ActiveX Controls Multiple Buffer Overflows at http://research.eeye.com/html/advisories/published/AD20070608.html.
- Full-Disclosure Mailing List, Wed Jun 06 2007 - 19:03:55 CDT, 2nd Yahoo 0day ActiveX Exploit at http://archives.neohapsis.com/archives/fulldisclosure/2007-06/0133.html.
- Yahoo! Messenger Web site, Download - Yahoo! Messenger at http://messenger.yahoo.com/download.php.
- Yahoo! Messenger Web site, Security Update - Yahoo! Messenger at http://messenger.yahoo.com/security_update.php?id=060707.
- BID-24184: Yahoo! Messenger Webcam Viewer YWCVWR.DLL ActiveX Control Denial of Service Vulnerability
- BID-24341: RETIRED: Yahoo! Messenger Multiple Unspecified Remote Code Execution Vulnerabilities
- BID-24355: Yahoo! Messenger Webcam Viewer ActiveX Control Buffer Overflow Vulnerability
- CVE-2007-3148: Buffer overflow in the Yahoo! Webcam Viewer ActiveX control in ywcvwr.dll 2.0.1.4 for Yahoo! Messenger 8.1.0.249 allows remote attackers to execute arbitrary code via a long server property value to the receive method.
- SA25547: Yahoo! Messenger Two ActiveX Controls Buffer Overflows
- SECTRACK ID: 1018203: Yahoo Messenger Unspecified Bugs Let Remote Users Execute Arbitrary Code
- SECTRACK ID: 1018204: Yahoo Messenger Buffer Overflows in Webcam ActiveX Controls Let Remote Users Execute Arbitrary Code
- US-CERT VU#932217: Yahoo! Webcam view utilities ActiveX control vulnerable to arbitrary code execution
- VUPEN/ADV-2007-2094: Yahoo! Messenger Webcam Upload and Viewer ActiveX Controls Buffer Overflow
Reported:
Jun 07, 2007
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