libTIFF: User-assisted execution of arbitrary code

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200809-07 / tiff
Release Date	September 08, 2008
Latest Revision	September 08, 2008: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-libs/tiff	< 3.8.2-r4	>= 3.8.2-r4	All supported architectures

Related bugreports: #234080

Synopsis

Multiple buffer underflow vulnerabilities in libTIFF may allow for the remote execution of arbitrary code.

2. Impact Information

Background

libTIFF provides support for reading and manipulating TIFF (Tagged Image File Format) images.

Description

Drew Yao (Apple Product Security) and Clay Wood reported multiple buffer underflows in the LZWDecode() and LZWDecodeCompat() functions in tif_lzw.c when processing TIFF files.

Impact

A remote attacker could entice a user to open a specially crafted TIFF file with an application making use of libTIFF, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the application.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All libTIFF users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/tiff-3.8.2-r4"

4. References

CVE-2008-2327

Page updated September 08, 2008

Summary: This is a Gentoo Linux Security Advisory

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