libexif security update

CentOS Errata and Security Advisory CESA-2007:1165

The libexif packages contain the Exif library. Exif is an image file format
specification that enables metadata tags to be added to existing JPEG, TIFF
and RIFF files. The Exif library makes it possible to parse an Exif file
and read this metadata.

An infinite recursion flaw was found in the way libexif parses Exif image
tags. If a victim opens a carefully crafted Exif image file, it could cause
the application linked against libexif to crash. (CVE-2007-6351)

An integer overflow flaw was found in the way libexif parses Exif image
tags. If a victim opens a carefully crafted Exif image file, it could cause
the application linked against libexif to execute arbitrary code, or crash.
(CVE-2007-6352)

Users of libexif are advised to upgrade to these updated packages, which
contain backported patches to resolve these issues.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2007-December/076703.html
https://lists.centos.org/pipermail/centos-announce/2007-December/076704.html

Affected packages:
libexif
libexif-devel

Upstream details at:
https://access.redhat.com/errata/RHSA-2007:1165