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Skype "callto:" URI Handler Buffer Overflow Vulnerability
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Secunia Advisory:
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SA13191
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Release Date:
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2004-11-15
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Last Update:
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2004-12-07
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Popularity:
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38,488 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: | Skype for Windows 1.x
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| CVE reference: | CVE-2004-1114
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Description:
Fabian Becker has reported a vulnerability in Skype, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error within the handling of command line arguments. This can be exploited to cause a stack-based buffer overflow by e.g. tricking a user into visiting a malicious web site, which passes an overly long string (more than 4096 bytes) to the "callto:" URI handler.
Successful exploitation may allow execution of arbitrary code.
The vulnerability affects versions 1.0.*.94 through 1.0.*.98.
Solution:
Update to version 1.0.0.100.
http://www.skype.com/products/skype/windows/
Provided and/or discovered by:
Fabian Becker
Changelog:
2004-11-22: Added link to vendor advisory and updated credits.
2004-12-07: Added CVE reference.
Original Advisory:
http://www.skype.com/security/ssa-2004-02.txt
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About this Secunia Advisory
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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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