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CHMlib Page Block Length Memory Corruption Vulnerability Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA23975  
Release Date: 2007-01-29
Last Update: 2007-02-01

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

Software:CHM Lib (chmlib) 0.x

CVE reference:CVE-2007-0619 (Secunia mirror)

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Description:
iDefense Labs has reported a vulnerability in CHM Lib, which potentially can be exploited by malicious people to compromise an application using the vulnerable library.

The vulnerability is caused due to an error when processing CHM files and can be exploited to corrupt memory via a CHM file containing a page of objects with a specially crafted page block length value.

Successful exploitation allows execution of arbitrary code when a malicious file is processed.

The vulnerability is reported in version 0.38. Prior versions may also be affected.

Solution:
Update to version 0.39.

Provided and/or discovered by:
Sean Larsson, iDefense Labs.

Changelog:
2007-02-01: Added CVE reference.

Original Advisory:
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=468



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.

2 Related Secunia Security Advisories

1. CHM Lib "extract_chmLib" Directory Traversal Vulnerability
2. CHM Lib Multiple Buffer Overflow Vulnerabilities


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