RHBA-2011:0715 - Bug Fix Advisory

Topic

Updated cups packages resolving several issues 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.

These updated cups packages provide fixes for the following bugs:

• Some printers were incorrectly reporting ink and toner levels via SNMP

backend. Support for an SNMP quirk has been added and enabled via the PPD file.
(BZ#580604)

• Previously, lpstat -p always reported job id as '-0'. This was because the

jobstate was never IPP_JOB_PROCESSING due to an SVN revision upstream. This
patch fixes this issue by adding the attributes needed for jobs. (BZ#614908)

• The previous 8MB default RIP cache size was insufficient for modern

high-resolution (color/photo) printing. This was because filters such as
pstoraster could fail. This update increases the default RIP cache size to 128MB
to fix this issue. (BZ#616864)

• If the cupsd daemon was stopped while a job was being sent to a printer using

a given backend, that backend was restarted multiple times before the CUPS
scheduler actually terminated. In this updated package, the CUPS scheduler
tracks whether it is shutting down and does not automatically start new jobs if
so. (BZ#624441)

• The 'restartlog' action was missing in Initscript usage output, preventing its

usage. This update adds it. (BZ#632180)

• Several rpmlint errors and warnings were fixed:
• fixing the character encoding in CREDITS.txt
• marking the D-Bus configuration file as config file
• not marking MIME types and convs files as config files (overrides can be

placed as new *.types/*.convs files in /etc/cups)

• not marking banners as config files, instead new banners are provided
• not marking initscript as a config file
• not marking templates and www files as config files, instead a different

ServerRoot setting is used to provide local overrides. Please note that a recent
security fix required a change to template files

• providing a versioned LPRng symbol for rpmlint
• using mode 0755 for binaries and libraries where appropriate
• moving /etc/cups/pstoraster.convs to /usr/share/cups/mime/
• moving the cups-config man page to the devel sub-package (BZ#634931)
• Red Hat Enterprise Linux 4 CUPS clients use the character set specified in

LANG as the charset attribute in CUPS IPP requests, where Red Hat Enterprise
Linux 5 and 6 ignore this, leading to incompatibilities. In these updated
packages the CUPS server has been adjusted so that non-UTF-8 clients (e.g. Red
Hat Enterprise Linux 4 clients) continue to be accepted. (BZ#642448)

• The subpackage cups-php consumed library libcups.so2 from subpackage cups-libs

even though it did not have an explicit package version requirement. In this
update cups-php subpackage now explicitly requires cups-libs of the same version
and release. (BZ#646814)

• The ipp, socket and lpd backends were treating name resolution failures as a

permanent error. Because these types of failures can be temporary, the tolerance
for DNS failures has been added. (BZ#654667)

• Previously, the CUPS service did not stop normally if it was running when

halting the system or a reboot was performed. Instead, it had to be killed in
the final stage of reboot or shut down. This update fixes Initscript so the
service is correctly stopped on reboot or halt. (BZ#659692)

• When the cupsd daemon was running with SELinux features enabled, the file

descriptor count was increasing over time until its resources ran out. With this
update, the resources are allocated only once so they do not leak file
descriptors. (BZ#668010)

• There was a small typo in sample snmp.conf file. It is fixed in this update.

(BZ#672614)

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

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

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 i386
• 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 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 614908 - lpstat -p' always reports job id as '-0'.
• BZ - 616864 - Need to increase RIPCache default
• BZ - 624441 - CUPS spawns a lot of backend process when being shut down while printing
• BZ - 632180 - Init script usage: Missing restartlog
• BZ - 634931 - too many rpmlint errors and warnings
• BZ - 642448 - RHEL 4 CUPS clients can use unsupported character sets when communicating with RHEL 6 servers
• BZ - 646814 - cups-php is missing explicit versioned dependency on cups-libs
• BZ - 654667 - Queues are stopped if domain name resolution fails, disregarding ErrorPolicy
• BZ - 659692 - cups won't stop on reboot or halt
• BZ - 668010 - avc calls leak file descriptors
• BZ - 672614 - Small typo in snmp.conf

CVEs

(none)

References

(none)