Moderate: ghostscript security update

Updated ghostscript packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 3, 4, and 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

Ghostscript is a set of software that provides a PostScript(TM)
interpreter, a set of C procedures (the Ghostscript library, which
implements the graphics capabilities in the PostScript language) and
an interpreter for Portable Document Format (PDF) files.

Multiple integer overflow flaws which could lead to heap-based buffer
overflows, as well as multiple insufficient input validation flaws, were
found in Ghostscript's International Color Consortium Format library
(icclib). Using specially-crafted ICC profiles, an attacker could create a
malicious PostScript or PDF file with embedded images which could cause
Ghostscript to crash, or, potentially, execute arbitrary code when opened
by the victim. (CVE-2009-0583, CVE-2009-0584)

All users of ghostscript are advised to upgrade to these updated packages,
which contain a backported patch to correct these issues.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

487742 - CVE-2009-0583 ghostscript: Multiple integer overflows in the International Color Consortium Format Library
487744 - CVE-2009-0584 ghostscript: Multiple insufficient upper-bounds checks on certain sizes in the International Color Consortium Format Library

https://www.redhat.com/security/data/cve/CVE-2009-0583.html
https://www.redhat.com/security/data/cve/CVE-2009-0584.html
http://www.redhat.com/security/updates/classification/#moderate