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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: cups security update
Advisory ID:       RHSA-2010:0811-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0811.html
Issue date:        2010-10-28
CVE Names:         CVE-2010-2431 CVE-2010-2941 
=====================================================================

1. Summary:

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

The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

The Common UNIX Printing System (CUPS) provides a portable printing layer
for UNIX operating systems.

A use-after-free flaw was found in the way the CUPS server parsed Internet
Printing Protocol (IPP) packets. A malicious user able to send IPP requests
to the CUPS server could use this flaw to crash the CUPS server or,
potentially, execute arbitrary code with the privileges of the CUPS server.
(CVE-2010-2941)

A possible privilege escalation flaw was found in CUPS. An unprivileged
process running as the "lp" user (such as a compromised external filter
program spawned by the CUPS server) could trick the CUPS server into
overwriting arbitrary files as the root user. (CVE-2010-2431)

Red Hat would like to thank Emmanuel Bouillon of NATO C3 Agency for
reporting the CVE-2010-2941 issue.

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

4. Solution:

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

This update is available via the 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

5. Bugs fixed (http://bugzilla.redhat.com/):

605397 - CVE-2010-2431 cups: latent privilege escalation vulnerability
624438 - CVE-2010-2941 cups: cupsd memory corruption vulnerability

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
cups-1.3.7-18.el5_5.8.src.rpm

i386:
cups-1.3.7-18.el5_5.8.i386.rpm
cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm
cups-libs-1.3.7-18.el5_5.8.i386.rpm
cups-lpd-1.3.7-18.el5_5.8.i386.rpm

x86_64:
cups-1.3.7-18.el5_5.8.x86_64.rpm
cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm
cups-debuginfo-1.3.7-18.el5_5.8.x86_64.rpm
cups-libs-1.3.7-18.el5_5.8.i386.rpm
cups-libs-1.3.7-18.el5_5.8.x86_64.rpm
cups-lpd-1.3.7-18.el5_5.8.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
cups-1.3.7-18.el5_5.8.src.rpm

i386:
cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm
cups-devel-1.3.7-18.el5_5.8.i386.rpm

x86_64:
cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm
cups-debuginfo-1.3.7-18.el5_5.8.x86_64.rpm
cups-devel-1.3.7-18.el5_5.8.i386.rpm
cups-devel-1.3.7-18.el5_5.8.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
cups-1.3.7-18.el5_5.8.src.rpm

i386:
cups-1.3.7-18.el5_5.8.i386.rpm
cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm
cups-devel-1.3.7-18.el5_5.8.i386.rpm
cups-libs-1.3.7-18.el5_5.8.i386.rpm
cups-lpd-1.3.7-18.el5_5.8.i386.rpm

ia64:
cups-1.3.7-18.el5_5.8.ia64.rpm
cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm
cups-debuginfo-1.3.7-18.el5_5.8.ia64.rpm
cups-devel-1.3.7-18.el5_5.8.ia64.rpm
cups-libs-1.3.7-18.el5_5.8.i386.rpm
cups-libs-1.3.7-18.el5_5.8.ia64.rpm
cups-lpd-1.3.7-18.el5_5.8.ia64.rpm

ppc:
cups-1.3.7-18.el5_5.8.ppc.rpm
cups-debuginfo-1.3.7-18.el5_5.8.ppc.rpm
cups-debuginfo-1.3.7-18.el5_5.8.ppc64.rpm
cups-devel-1.3.7-18.el5_5.8.ppc.rpm
cups-devel-1.3.7-18.el5_5.8.ppc64.rpm
cups-libs-1.3.7-18.el5_5.8.ppc.rpm
cups-libs-1.3.7-18.el5_5.8.ppc64.rpm
cups-lpd-1.3.7-18.el5_5.8.ppc.rpm

s390x:
cups-1.3.7-18.el5_5.8.s390x.rpm
cups-debuginfo-1.3.7-18.el5_5.8.s390.rpm
cups-debuginfo-1.3.7-18.el5_5.8.s390x.rpm
cups-devel-1.3.7-18.el5_5.8.s390.rpm
cups-devel-1.3.7-18.el5_5.8.s390x.rpm
cups-libs-1.3.7-18.el5_5.8.s390.rpm
cups-libs-1.3.7-18.el5_5.8.s390x.rpm
cups-lpd-1.3.7-18.el5_5.8.s390x.rpm

x86_64:
cups-1.3.7-18.el5_5.8.x86_64.rpm
cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm
cups-debuginfo-1.3.7-18.el5_5.8.x86_64.rpm
cups-devel-1.3.7-18.el5_5.8.i386.rpm
cups-devel-1.3.7-18.el5_5.8.x86_64.rpm
cups-libs-1.3.7-18.el5_5.8.i386.rpm
cups-libs-1.3.7-18.el5_5.8.x86_64.rpm
cups-lpd-1.3.7-18.el5_5.8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2010-2431.html
https://www.redhat.com/security/data/cve/CVE-2010-2941.html
http://www.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2010 Red Hat, Inc.
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