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Insecure Library Loading
Highly critical

Amaya Multiple Vulnerabilities

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Release Date:  2009-03-31    Last Update:  2009-06-17    Views:  4,328

Secunia Advisory SA34531

Where:

From remote

Impact:

System access

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


Some vulnerabilities have been discovered in Amaya, which can be exploited by malicious people to compromise a user's system.

1) A boundary error in the processing of e.g. "script" tags containing an overly long "defer" attribute can be exploited to cause a stack-based buffer overflow when a user visits a malicious web page.

2) A boundary error exists in the "ParseCharsetAndContentType()" function in amaya/XHTMLbuilder.c. This can be exploited to cause a stack-based buffer overflow via a specially crafted HTML file defining an overly large charset.

3) An integer overflow error exists within the "ReadPng()" function in thotlib/image/pnghandler.c. This can be exploited to cause a heap-based buffer overflow via a PNG image having an overly large width and height.

4) An integer overflow error exists within the "ReadJPEG()" function in thotlib/image/jpeghandler.c. This can be exploited to cause a heap-based buffer overflow via a JPEG image having an overly large width and height.

Successful exploitation of the vulnerabilities may allow execution of arbitrary code.

The vulnerabilities are confirmed in version 11.1 on the Windows platform. Other versions may also be affected.


Solution:
Do not follow untrusted links or browse untrusted web sites.

Provided and/or discovered by:
1) Alfons Luja
2) cicatriz
3, 4) Tielei Wang, ICST-ERCIS

Original Advisory:
1) http://milw0rm.com/exploits/8314
2) http://research.voodoo-labs.org/advisories/2

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: Amaya Multiple Vulnerabilities

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