libtiff security update

CentOS Errata and Security Advisory CESA-2006:0425-01

The libtiff package contains a library of functions for manipulating TIFF
(Tagged Image File Format) image format files.

An integer overflow flaw was discovered in libtiff. An attacker could
create a carefully crafted TIFF file in such a way that it could cause an
application linked with libtiff to crash or possibly execute arbitrary
code. (CVE-2006-2025)

A double free flaw was discovered in libtiff. An attacker could create a
carefully crafted TIFF file in such a way that it could cause an
application linked with libtiff to crash or possibly execute arbitrary
code. (CVE-2006-2026)

Several denial of service flaws were discovered in libtiff. An attacker
could create a carefully crafted TIFF file in such a way that it could
cause an application linked with libtiff to crash. (CVE-2006-2024,
CVE-2006-2120)

All users are advised to upgrade to these updated packages, which contain
backported fixes for these issues.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2006-May/075058.html

Affected packages:
libtiff
libtiff-devel