From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Oct 14 2004 - 09:06:39 CDT

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TITLE:
LibTIFF Multiple Image Decoder Parsing Vulnerabilities

SECUNIA ADVISORY ID:
SA12818

VERIFY ADVISORY:
http://secunia.com/advisories/12818/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
From remote

SOFTWARE:
LibTIFF 3.x
http://secunia.com/product/4053/

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

1) Boundary errors within the RLE decoding in "tif_next.c",
"tif_thunder.c", and "tif_luv.c" can be exploited to cause heap-based
buffer overflows. This can be exploited with a specially crafted TIFF
image file to execute arbitrary code via an application linked to the
vulnerable library.

2) Some unspecified integer overflows may potentially allow arbitrary
code execution on a user's system.

The vulnerabilities have been reported in version 3.6.1. Other
versions may also be affected.

SOLUTION:
1) Secunia is currently not aware of an official updated version,
which addresses the vulnerabilities.
2) The vulnerability has been fixed in version 3.7.0beta2.

PROVIDED AND/OR DISCOVERED BY:
1) Chris Evans
2) Dmitry V. Levin

ORIGINAL ADVISORY:
http://scary.beasts.org/security/CESA-2004-006.txt

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