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libTIFF Multiple Vulnerabilities
Secunia Advisory: SA21304
Release Date: 2006-08-02
Last Update: 2007-07-16
Popularity: 18,062 views

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

Software:LibTIFF 3.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Some vulnerabilities have been reported in libTIFF, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.

1) A boundary error in the "TIFFFetchShortPair()" function in tif_dirread.c can be exploited to cause a stack-based overflow via a TIFF image file with a specially crafted "DotRange", "YCbCrSubsampling", "HalftoneHints", or "PageNumber" tag.

2) Boundary errors within the decoders for JPEG, PixarLog, and NeXT RLE streams can be exploited to cause heap-based buffer overflows.

3) An infinite loop in the "EstimateStripByteCounts()" function can be exploited to cause a DoS.

4) Various unchecked arithmetic operations, including range check operations, can be exploited to bypass certain sanity checks.

5) A flaw within the handling of custom tags can lead to abnormal behaviour.

Successful exploitation allows crashing applications linked against libTIFF or execution of arbitrary code.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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