Some vulnerabilities have been reported in Yahoo! Messenger, which can be exploited by malicious people to compromise a user's system.
The vulnerabilities are caused due to boundary errors within the YVerInfo.GetInfo.1 and YVerInfo.GetInfo2.1 ActiveX controls (YVerInfo.dll) when handling the "fvCom()" and "info()" methods. These can be exploited to cause stack-based buffer overflows by passing specially-crafted, overly long arguments to the affected methods.
Successful exploitation allows execution of arbitrary code, but requires a malicious web page is in a domain that contains a ".yahoo." substring in the subdomain of the TLD (e.g. via a cross-site scripting vulnerability or by manipulating the DNS resolution).
The vulnerabilities are reported in YVerInfo.dll versions prior to 2007.8.27.1 included in Yahoo! Messenger 8.1 downloaded before 2007-08-29.
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to firstname.lastname@example.org
Subject: Yahoo! Messenger YVerInfo.dll ActiveX Control Buffer Overflows
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.