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[SA39017] Ken Ward's Zipper Buffer Overflow Vulnerability

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Mar 22 2010 - 18:57:17 CDT

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TITLE:
Ken Ward's Zipper Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA39017

VERIFY ADVISORY:
http://secunia.com/advisories/39017/

DESCRIPTION:
corelanc0d3r has discovered a vulnerability in Ken Ward's Zipper,
which can be exploited by malicious people to compromise a user's
system.

The vulnerability is caused due to a boundary error when processing
ZIP files. This can be exploited to cause a stack-based buffer
overflow by tricking a user into e.g. double clicking a ZIP entry
having an overly long filename.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in version 1.400. Other versions may
also be affected.

SOLUTION:
Do not process untrusted ZIP files with the application.

PROVIDED AND/OR DISCOVERED BY:
corelanc0d3r, Corelan Team

ORIGINAL ADVISORY:
http://www.corelan.be:8800/index.php/forum/security-advisories/corelan-10-016-ken-ward-zipper-zip-stack-bof-seh/

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