RHBA-2012:0818 - Bug Fix Advisory

Topic

Updated cups packages that fix multiple bugs are now available for Red Hat
Enterprise Linux 6.

Description

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

This update fixes the following bugs:

• Prior to this update, the textonly filter did not always correctly generate

output when a single copy was requested. The textonly filter generates output
for a single or multiple copies by spooling the output for one copy into a
temporary file, then sending the content of that temporary file as many times as
required. However, if the filter was used for the MIME-type conversion rather
than as a PostScript Printer Description (PPD) filter, and a single copy was
requested, the temporary file was not created and the program failed with the
"No such file or directory" message. With this update, the textonly filter has
been modified to create a temporary file regardless of the number of copies
specified. The data is now sent to the printer as expected. (BZ#738410)

• Previously, empty jobs could be created using the "lp" command either by

submitting an empty file to print (for example by executing "lp /dev/null") or
by providing an empty file as standard input. In this way, a job was created but
was never processed. With this update, creation of empty print jobs is not
allowed, and the user is now informed that no file is in the request.
(BZ#738914, BZ#740093)

• The German translation for the search page template of the web interface

contained an error that prevented the search feature from functioning correctly:
attempting to search for a printer in the CUPS web interface failed, and an
error message was displayed in the browser. The bug in the search template has
been fixed, and the search feature in the German locale now works as expected in
this scenario. (BZ#806818)

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

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/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 738410 - [RHEL 6] textonly filter won't work as a pipe with copies=1
• BZ - 738914 - print null job with lpr makes job stay in queue forever even though ErrorPolicy is set to abort-job
• BZ - 806818 - German localized web interface search template has a bug

CVEs

(none)

References

(none)