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libexif EXIF Information Integer Overflow Vulnerability Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA25642  
Release Date: 2007-06-13
Last Update: 2007-06-14

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

Software:libexif 0.x

CVE reference:CVE-2006-4168 (Secunia mirror)

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Description:
A vulnerability has been reported in libexif, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise an application using the library.

The vulnerability is caused due to an integer overflow error within the "exif_data_load_data_entry()" function when handling EXIF component information and can be exploited to cause a heap based buffer overflow.

Successful exploitation may allow an attacker to crash an application using the library or to execute arbitrary code.

The vulnerability is reported in versions prior to 0.6.16.

Solution:
Update to version 0.6.16.

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

Changelog:
2007-06-14: Updated "Description" section. Added information from iDefense. Added link to "Original Advisory" section. Updated "Title".

Original Advisory:
http://sourceforge.net/project/shownotes.php?release_id=515385

iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=543



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.

4 Related Secunia Security Advisories

1. libexif Integer Overflow and Denial of Service
2. libexif EXIF Information Handling Vulnerability
3. libexif EXIF Tag Parsing Denial of Service Vulnerability
4. libexif EXIF Tag Structure Validation Vulnerability


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