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DynaZip dzip32.dll/dzips32.dll Buffer Overflow Vulnerabilities
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Secunia Advisory:
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SA21180
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Release Date:
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2006-07-25
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Popularity:
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5,187 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: | DynaZip Max 5.x
DynaZip Max Secure 6.x
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Description:
Tan Chew Keong has reported some vulnerabilities in DynaZip, which can be exploited by malicious people to compromise a user's system.
1) Boundary errors in dzip32.dll / dzips32.dll when repairing archives can be exploited to cause a stack-based buffer overflow when a user attempts to repair a malicious ZIP archive containing a file with an overly long filename (more than 2048 bytes).
2) Another boundary error when adding, updating, or freshening files in a ZIP archive can be exploited to cause a stack-based buffer overflow via a malicious ZIP archive containing a file with an overly long filename.
Successful exploitation allows execution of arbitrary code.
The vulnerabilities have been reported in DynaZip Max version 5.0.0.7 and DynaZip Max Secure version 6.0.0.4. Prior versions may also be affected.
Solution:
Update to DynaZip Max 5.0.0.8 or DynaZip Max Secure 6.0.0.5.
http://innermedia.com/upgrades.html
Provided and/or discovered by:
Tan Chew Keong
Original Advisory:
http://vuln.sg/dynazip5007-en.html
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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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