LibTIFF Buffer Underflow in LZWDecodeCompat() Lets Remote Users Deny Service
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SecurityTracker Alert ID: 1022426
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SecurityTracker URL: http://securitytracker.com/id?1022426
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CVE Reference: GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Jun 22 2009
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Impact: Denial of service via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Description: A vulnerability was reported in LibTIFF. A remote user can cause denial of service conditions.
A remote user can create a specially crafted file that, when loaded by the target application, will trigger a buffer underflow in
LZWDecodeCompat() and cause the application to crash.
The vulnerability resides in 'tif_lzw.c'.
Code execution was not confirmed
in the report.
wololo reported this vulnerability.
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Impact: A remote user can cause the target application to crash.
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Solution: The vendor has issued a source code fix, available via CVS.
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Vendor URL: www.libtiff.org/ (Links to External Site)
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Cause: Boundary error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
None.
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Source Message Contents
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Date: Mon, 22 Jun 2009 09:17:35 -0400
Subject: LibTIFF
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> A crafted TIFF can crash libtiff in LZWDecodeCompat via underflow
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