Yahoo! Messenger Yahoo.AudioConf ActiveX buffer overflow
| yahoo-yahooaudioconf-activex-bo (33408) |  High Risk |
Description:
Yahoo! Messenger is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the Yahoo.AudioConf ActiveX control. By creating a specially-crafted Web page specifying large socksHostname and hostname properties to overflow a buffer once the createAndJoinConference() method is called, a remote attacker could execute arbitrary code on the system, if the attacker could persuade the victim to click a link to a malicious Web page.
Platforms Affected:
- Yahoo, Audio Conferencing ActiveX Control
Remedy:
Refer to Yahoo! Security Update 2007-04-02 for update information. See References.
Consequences:
Gain Access
References:
- Yahoo! Messenger Web site, Yahoo! Messenger - Chat, Instant message, SMS, PC Calls and More at http://messenger.yahoo.com/.
- Yahoo! Security Update 2007-04-02, Yahoo! ActiveX Audio Conferencing Update at http://messenger.yahoo.com/security_update.php?id=031207.
- ZDI-07-012, Yahoo! Messenger AudioConf ActiveX Control Buffer Overflow Vulnerability at http://www.zerodayinitiative.com/advisories/ZDI-07-012.html.
- BID-23291: Yahoo! Messenger Audio Conferencing ActiveX Control Remote Buffer Overflow Vulnerability
- CVE-2007-1680: Stack-based buffer overflow in the createAndJoinConference function in the AudioConf ActiveX control (yacscom.dll) in Yahoo! Messenger before 20070313 allows remote attackers to execute arbitrary code via long (1) socksHostname and (2) hostname properties.
- SA24742: Yahoo! Messenger AudioConf ActiveX Control Buffer Overflow
- SECTRACK ID: 1017867: Yahoo! Messenger Buffer Overflow in AudioConf ActiveX Control Lets Remote Users Execute Arbitrary Code
- US-CERT VU#388377: Yahoo! Messenger AudioConf ActiveX Control buffer overflow vulnerability
- VUPEN/ADV-2007-1219: Yahoo Messenger AudioConf ActiveX Control Remote Buffer Overflow Vulnerability
Reported:
Apr 03, 2007
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