4651 : Yahoo! Audio Conferencing ActiveX Control Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
10	611	over 8 years ago	over 4 years ago	0 times	90%

Timeline

Discovery Date	Disclosure Date
2003-05-12	2003-05-30

Keywords

2B323CD9-50E3-11D3-9466-00A0C9700498

Description

Yahoo! Audio Conferencing contains a flaw that may allow a remote attacker to execute arbitrary code. The issue is due to an unchecked buffer in the Audio Conferencing ActiveX Control. If an attacker sends a specially crafted request, they may be able to overflow the buffer and execute arbitrary code.

Classification

Location: Remote / Network Access, Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity, Loss of Availability
Exploit: Exploit Rumored
Disclosure: OSVDB Verified

Technical

Yahoo! Audio Conferencing ActiveX Control is used in Yahoo! Messenger and Yahoo! Chat.

Solution

Upgrade to version 1,0,0,45 or higher (pushed automatically upon connection), as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround:

The control can be disabled by removing the object from the Internet Explorer "Downloaded Program Files" cache and, if Yahoo! Messenger is installed, going into the Yahoo! Messenger directory (by default, C:\Program Files\Yahoo!\Messenger\) and running the following command:

regsvr32 /u yacscom.dll

Products

Yahoo! Inc.	Audio Conferencing ActiveX Control	1,0,0,43
		1,0,0,44

References

ISS X-Force ID: 12130
CVE ID: 2003-1129 (see also: NVD)
Keyword: 2B323CD9-50E3-11D3-9466-00A0C9700498 activex audio chat instant messenger Yahoo
Bugtraq ID: 7561
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2003-05/0353.html
Vendor Specific Advisory URL: http://help.yahoo.com/help/us/mesg/use/use-45.html

Credit

Caesar - cesarc56yahoo.com -

CVSSv2 Score

CVSSv2 Base Score = 2.6
Source: nvd.nist.gov | Generated: 2005-05-23 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

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