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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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Popularity:
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20,279 views
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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
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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.
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.
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