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Yahoo! Messenger YMailAttach ActiveX Control Buffer Overflow
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Secunia Advisory:
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SA23401
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Release Date:
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2006-12-15
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Last Update:
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2007-01-08
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Critical:
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Highly critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Yahoo! Messenger 5.x
Yahoo! Messenger 6.x
Yahoo! Messenger 7.x
Yahoo! Messenger 8.x
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| | CVE reference: | CVE-2006-6603 (Secunia mirror)
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Description:
A vulnerability has been reported in Yahoo! Messenger, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to an error in the YMailAttach ActiveX control when handling the TextETACalculating property. This can be exploited to cause a heap-based buffer overflow by setting an overly long string to the said property.
Successful exploitation allows execution of arbitrary code and requires that the user is e.g. tricked into visiting a malicious web site.
The vulnerability is reported in version 8.0 and 7.5. Other versions may also be affected.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.
Solution:
Update to the latest version.
http://messenger.yahoo.com/
Provided and/or discovered by:
Discovered by Peter Vreugdenhil and reported via iDefense Labs.
Changelog:
2006-12-18: Added link to US-CERT.
2006-12-21: Added CVE reference.
2007-01-08: Updated "Description" section to include new information from iDefense.
Original Advisory:
Yahoo:
http://messenger.yahoo.com/security_update.php?id=120806
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=456
Other References:
US-CERT VU#901852:
http://www.kb.cert.org/vuls/id/901852
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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