libTIFF: Multiple vulnerabilities — GLSA 200608-07

libTIFF contains several vulnerabilities that could result in arbitrary code execution.

Affected Packages

media-libs/tiff on all architectures
Affected versions < 3.8.2-r2
Unaffected versions >= 3.8.2-r2

Background

libTIFF provides support for reading and manipulating TIFF images.

Description

Tavis Ormandy of the Google Security Team discovered several heap and stack buffer overflows and other flaws in libTIFF. The affected parts include the TIFFFetchShortPair(), TIFFScanLineSize() and EstimateStripByteCounts() functions, and the PixarLog and NeXT RLE decoders.

Impact

A remote attacker could entice a user to open a specially crafted TIFF file, resulting in the possible execution of arbitrary code.

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-r2"

References

Release Date
August 04, 2006

Latest Revision
August 04, 2006: 01

Severity
normal

Exploitable
remote

Bugzilla entries