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Insecure Library Loading
Moderately critical

WinImage FAT Image Long Pathname Buffer Overflow Vulnerabilities

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Release Date:  2007-05-17    Last Update:  2007-05-22    Views:  8,163

Secunia Advisory SA25277

Where:

From remote

Impact:

System access

Solution Status:

Unpatched

CVE Reference(s):

Description


Tan Chew Keong has reported two vulnerabilities in WinImage, which can be exploited by malicious people to compromise a user's system.

1) A boundary error when extracting files from FAT images using their full path name can be exploited to cause a stack-based buffer overflow via a specially crafted FAT image containing overly long directory names in multiple levels of sub-directories.

Successful exploitation allows execution of arbitrary code when a user attempts to extract a file from a malicious FAT image using its full path name.

2) A boundary error when traversing into directories in FAT images can be exploited to cause a heap-based buffer overflow via a specially crafted FAT image containing overly long directory names in multiple levels of sub-directories.

Successful exploitation allows execution of arbitrary code when a user attempts to traverse into a directory in a malicious FAT image.

The vulnerabilities are reported in version 8.0.8000. Other versions may also be affected.


Solution:
Do not open untrusted FAT images.

Provided and/or discovered by:
Tan Chew Keong, vuln.sg.

Original Advisory:
Vuln.sg:
http://vuln.sg/winimage808000-en.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: WinImage FAT Image Long Pathname Buffer Overflow Vulnerabilities

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