libTIFF: User-assisted execution of arbitrary code — GLSA 200809-07

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

Affected Packages

media-libs/tiff on all architectures
Affected versions < 3.8.2-r4
Unaffected versions >= 3.8.2-r4

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.

Workaround

There is no known workaround at this time.

Resolution

All libTIFF users should upgrade to the latest version:

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

References

Release Date
September 08, 2008

Latest Revision
September 08, 2008: 01

Severity
normal

Exploitable
remote

Bugzilla entries