CheckMark Payroll DUNZIP32.dll Buffer Overflow Vulnerability
Secunia Advisory: SA17096
Release Date: 2005-10-12
Last Update: 2006-03-30
Popularity: 5,623 views

Critical:
Less critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:CheckMark Payroll for Windows 3.x

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CVE reference:CVE-2004-1094


Description:
Juha-Matti Laurio has reported a vulnerability in CheckMark Payroll, which potentially can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in a 3rd-party compression library (DUNZIP32.dll) when extracting a backup file.

The vulnerability is related to:
SA12805

Successful exploitation may allow execution of arbitrary code, but requires that the user is e.g. tricked into restoring from a malicious ZIP backup file.

The vulnerability has been reported in versions prior to 3.9.7.

Solution:
Update to version 3.9.7 (requires CheckMark Payroll 2004/2005 for Windows version 3.9.x).
http://www.checkmark.com/support/patch_win_pr.php

Provided and/or discovered by:
Juha-Matti Laurio

Changelog:
2006-03-30: Added CVE reference.

Original Advisory:
CheckMark Software:
http://www.checkmark.com/support/prw_update.php

Juha-Matti Laurio:
http://www.networksecurity.fi/advisories/payroll.html

Other References:
SA12805:
http://secunia.com/advisories/12805/


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