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WinRAR Format String and Buffer Overflow Vulnerabilities
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Secunia Advisory:
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SA16973
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Release Date:
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2005-10-11
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Last Update:
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2006-01-19
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Popularity:
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9,959 views
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Critical:
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Moderately 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: | WinRAR 3.x
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| CVE reference: | CVE-2005-3262
CVE-2005-3263
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Description:
Secunia Research has discovered two vulnerabilities in WinRAR, which can be exploited by malicious people to compromise a user's system.
1) A format string error exists when displaying a diagnostic error message that informs the user of an invalid filename in an UUE/XXE encoded file. This can be exploited to execute arbitrary code when a malicious UUE/XXE file is decoded.
2) A boundary error in UNACEV2.DLL can be exploited to cause a stack-based buffer overflow. This allows arbitrary code execution when a malicious ACE archive containing a file with an overly long file name is extracted.
Vulnerability #2 is related to:
SA14359
The vulnerabilities have been confirmed in version 3.50. Prior versions may also be affected.
Solution:
Update to version 3.51.
http://www.rarlabs.com/download.htm
Provided and/or discovered by:
Tan Chew Keong, Secunia Research.
Changelog:
2006-01-19: Added CVE references.
Original Advisory:
RARLAB:
http://www.rarlabs.com/rarnew.htm
Secunia Research:
http://secunia.com/secunia_research/2005-53/advisory/
Other References:
SA14359:
http://secunia.com/advisories/14359/
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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.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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