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.
*CVSS:
| Base Score: | 5.6 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 4.1 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Refer to Yahoo! Security Update 2007-04-02 for update information. See References.
References:
- Yahoo! Messenger Web site: Yahoo! Messenger - Chat, Instant message, SMS, PC Calls and More.
- Yahoo! Security Update 2007-04-02: Yahoo! ActiveX Audio Conferencing Update.
- ZDI-07-012: Yahoo! Messenger AudioConf ActiveX Control Buffer Overflow Vulnerability.
- 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
Platforms Affected:
- Yahoo Audio Conferencing ActiveX Control
Reported:
Apr 03, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.