[RHSA-2012:0302-03] Low: cups security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Low: cups security and bug fix update

Advisory ID: RHSA-2012:0302-03

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0302.html

Issue date: 2012-02-21

CVE Names: CVE-2011-2896

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1. Summary:

 

Updated cups packages that fix one security issue and various bugs are now

available for Red Hat Enterprise Linux 5.

 

The Red Hat Security Response Team has rated this update as having low

security impact. A Common Vulnerability Scoring System (CVSS) base score,

which gives a detailed severity rating, is available from the CVE link 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 Linux, UNIX, and similar operating systems.

 

A heap-based buffer overflow flaw was found in the Lempel-Ziv-Welch (LZW)

decompression algorithm implementation used by the CUPS GIF image format

reader. An attacker could create a malicious GIF image file that, when

printed, could possibly cause CUPS to crash or, potentially, execute

arbitrary code with the privileges of the "lp" user. (CVE-2011-2896)

 

This update also fixes the following bugs:

 

* Prior to this update, the "Show Completed Jobs," "Show All Jobs," and

"Show Active Jobs" buttons returned results globally across all printers

and not the results for the specified printer. With this update, jobs from

only the selected printer are shown. (BZ#625900)

 

* Prior to this update, the code of the serial backend contained a wrong

condition. As a consequence, print jobs on the raw print queue could not be

canceled. This update modifies the condition in the serial backend code.

Now, the user can cancel these print jobs. (BZ#625955)

 

* Prior to this update, the textonly filter did not work if used as a pipe,

for example when the command line did not specify the filename and the

number of copies was always 1. This update modifies the condition in the

textonly filter. Now, the data are sent to the printer regardless of the

number of copies specified. (BZ#660518)

 

* Prior to this update, the file descriptor count increased until it ran

out of resources when the cups daemon was running with enabled

Security-Enhanced Linux (SELinux) features. With this update, all resources

are allocated only once. (BZ#668009)

 

* Prior to this update, CUPS incorrectly handled the en_US.ASCII value for

the LANG environment variable. As a consequence, the lpadmin, lpstat, and

lpinfo binaries failed to write to standard output if using LANG with the

value. This update fixes the handling of the en_US.ASCII value and the

binaries now write to standard output properly. (BZ#759081)

 

All users of cups are advised to upgrade to these updated packages, which

contain backported patches to resolve 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

https://access.redhat.com/kb/docs/DOC-11259

 

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

 

625900 - STR #3436: Jobs buttons not working correctly when viewing a specific printer

625955 - Serial back end has inverted SIGTERM block

660518 - textonly filter won't work as a pipe with copies=1

668009 - avc calls leak file descriptors

727800 - CVE-2011-2896 David Koblas' GIF decoder LZW decoder buffer overflow

 

6. Package List:

 

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

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/cups-1.3.7-30.el5.src.rpm

 

i386:

cups-1.3.7-30.el5.i386.rpm

cups-debuginfo-1.3.7-30.el5.i386.rpm

cups-libs-1.3.7-30.el5.i386.rpm

cups-lpd-1.3.7-30.el5.i386.rpm

 

x86_64:

cups-1.3.7-30.el5.x86_64.rpm

cups-debuginfo-1.3.7-30.el5.i386.rpm

cups-debuginfo-1.3.7-30.el5.x86_64.rpm

cups-libs-1.3.7-30.el5.i386.rpm

cups-libs-1.3.7-30.el5.x86_64.rpm

cups-lpd-1.3.7-30.el5.x86_64.rpm

 

RHEL Desktop Workstation (v. 5 client):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/cups-1.3.7-30.el5.src.rpm

 

i386:

cups-debuginfo-1.3.7-30.el5.i386.rpm

cups-devel-1.3.7-30.el5.i386.rpm

 

x86_64:

cups-debuginfo-1.3.7-30.el5.i386.rpm

cups-debuginfo-1.3.7-30.el5.x86_64.rpm

cups-devel-1.3.7-30.el5.i386.rpm

cups-devel-1.3.7-30.el5.x86_64.rpm

 

Red Hat Enterprise Linux (v. 5 server):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/cups-1.3.7-30.el5.src.rpm

 

i386:

cups-1.3.7-30.el5.i386.rpm

cups-debuginfo-1.3.7-30.el5.i386.rpm

cups-devel-1.3.7-30.el5.i386.rpm

cups-libs-1.3.7-30.el5.i386.rpm

cups-lpd-1.3.7-30.el5.i386.rpm

 

ia64:

cups-1.3.7-30.el5.ia64.rpm

cups-debuginfo-1.3.7-30.el5.i386.rpm

cups-debuginfo-1.3.7-30.el5.ia64.rpm

cups-devel-1.3.7-30.el5.ia64.rpm

cups-libs-1.3.7-30.el5.i386.rpm

cups-libs-1.3.7-30.el5.ia64.rpm

cups-lpd-1.3.7-30.el5.ia64.rpm

 

ppc:

cups-1.3.7-30.el5.ppc.rpm

cups-debuginfo-1.3.7-30.el5.ppc.rpm

cups-debuginfo-1.3.7-30.el5.ppc64.rpm

cups-devel-1.3.7-30.el5.ppc.rpm

cups-devel-1.3.7-30.el5.ppc64.rpm

cups-libs-1.3.7-30.el5.ppc.rpm

cups-libs-1.3.7-30.el5.ppc64.rpm

cups-lpd-1.3.7-30.el5.ppc.rpm

 

s390x:

cups-1.3.7-30.el5.s390x.rpm

cups-debuginfo-1.3.7-30.el5.s390.rpm

cups-debuginfo-1.3.7-30.el5.s390x.rpm

cups-devel-1.3.7-30.el5.s390.rpm

cups-devel-1.3.7-30.el5.s390x.rpm

cups-libs-1.3.7-30.el5.s390.rpm

cups-libs-1.3.7-30.el5.s390x.rpm

cups-lpd-1.3.7-30.el5.s390x.rpm

 

x86_64:

cups-1.3.7-30.el5.x86_64.rpm

cups-debuginfo-1.3.7-30.el5.i386.rpm

cups-debuginfo-1.3.7-30.el5.x86_64.rpm

cups-devel-1.3.7-30.el5.i386.rpm

cups-devel-1.3.7-30.el5.x86_64.rpm

cups-libs-1.3.7-30.el5.i386.rpm

cups-libs-1.3.7-30.el5.x86_64.rpm

cups-lpd-1.3.7-30.el5.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://access.redhat.com/security/team/key/#package

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2011-2896.html

https://access.redhat.com/security/updates/classification/#low

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2012 Red Hat, Inc.

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