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LibTIFF Denial of Service Vulnerabilities

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Release Date:  2010-07-02    Last Update:  2011-04-12    Views:  5,693

Secunia Advisory SA40422

Where:

From remote

Impact:

DoS

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Some vulnerabilities have been reported in LibTIFF, which can be exploited by malicious people to cause a DoS (Denial of Service).

1) An error within the "putcontig8bitYCbCr12tile()" function in libtiff/tif_getimage.c can be exploited to cause a crash when trying to flip an image vertically on 64-bit platforms.

2) An error within the "TIFFYCbCrtoRGB()" function in libtiff/tif_color.c when processing invalid ReferenceBlackWhite values can be exploited to cause a crash.

3) An assertion error within the "OJPEGPostDecode()" function in libtiff/tif_ojpeg.c can be exploited to terminate an application using the library.

4) The "TIFFNewScanlineSize()", "TIFFScanlineSize()", and "TIFFVStripSize()" functions in libtiff/tif_strip.c call the "TIFFGetField()" without properly checking the return value, which can potentially be exploited to e.g. cause a crash.

5) The library does not properly handle images with "SamplesPerPixel" set to "1" and "Photometric" set to "YCbCr", which can be exploited to cause a crash.

6) Errors when handling TIFF images with undefined strip byte counts can be exploited to cause a crash.


Solution:
Update to version 3.9.5.

Provided and/or discovered by:
1-4, 6) Reported in e.g. Red Hat bug #583081 or #603024
5) Sauli Pahlman

Original Advisory:
http://www.remotesensing.org/libtiff/v3.9.5.html
http://bugzilla.maptools.org/show_bug.cgi?id=2207
https://bugzilla.redhat.com/show_bug.cgi?id=583081
http://bugzilla.maptools.org/show_bug.cgi?id=2208
https://bugzilla.redhat.com/show_bug.cgi?id=583081
http://bugzilla.maptools.org/show_bug.cgi?id=2209
https://bugzilla.redhat.com/show_bug.cgi?id=583081
http://bugzilla.maptools.org/show_bug.cgi?id=2215
https://bugzilla.redhat.com/show_bug.cgi?id=583081
http://bugzilla.maptools.org/show_bug.cgi?id=2216
http://bugzilla.maptools.org/show_bug.cgi?id=1996#c12
https://bugzilla.redhat.com/show_bug.cgi?id=603024#c9

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 Denial of Service Vulnerabilities

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