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Insecure Library Loading
Moderately critical

LibTIFF tiff2rgba and rgb2ycbcr Integer Overflow Vulnerabilities

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Release Date:  2009-07-14    Last Update:  2010-06-16    Views:  4,263

Secunia Advisory SA35817

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


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

1) An integer overflow error within the "tiffcvt()" function included in the rgb2ycbcr utility can be exploited to cause a heap-based buffer overflow via a specially crafted TIFF image.

2) An integer overflow error within the "cvt_whole_image()" function included in the tiff2rgba utility can be exploited to cause heap-based buffer overflow via a specially crafted TIFF image.

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

The vulnerabilities are reported in version 3.8.2. Other versions may also be affected.


Solution:
Update to version 3.9.4.

Provided and/or discovered by:
Tielei Wang of ICST-ERCIS, reported via oCERT

Original Advisory:
LibTIFF:
http://www.remotesensing.org/libtiff/v3.9.4.html

oCERT:
http://www.ocert.org/advisories/ocert-2009-012.html

LibTIFF bug report:
http://bugzilla.maptools.org/show_bug.cgi?id=2079

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: LibTIFF tiff2rgba and rgb2ycbcr Integer Overflow Vulnerabilities

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