Moderate: cups security update

Updated cups packages that fix two security issues are now available for
Red Hat Enterprise Linux 5.

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

The Common UNIX Printing System (CUPS) provides a portable printing layer
for UNIX operating systems. The CUPS "pdftops" filter converts Portable
Document Format (PDF) files to PostScript.

Two integer overflow flaws were found in the CUPS "pdftops" filter. An
attacker could create a malicious PDF file that would cause "pdftops" to
crash or, potentially, execute arbitrary code as the "lp" user if the file
was printed. (CVE-2009-3608, CVE-2009-3609)

Red Hat would like to thank Chris Rohlf for reporting the CVE-2009-3608
issue.

Users of cups are advised to upgrade to these updated packages, which
contain a backported patch to correct these issues. After installing the
update, the cupsd daemon will be restarted automatically.

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

526637 - CVE-2009-3608 xpdf/poppler: integer overflow in ObjectStream::ObjectStream (oCERT-2009-016)
526893 - CVE-2009-3609 xpdf/poppler: ImageStream::ImageStream integer overflow

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3608
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3609
http://www.redhat.com/security/updates/classification/#moderate