Issued:

2009-11-18

Updated:

2010-01-12

RHSA-2009:1595 - Moderate: cups security update

Synopsis

Moderate: cups security update

Type/Severity

Security Advisory Moderate

Topic

Updated cups packages that fix multiple 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.

[Updated 12th January 2010] The packages list in this erratum has been updated to include missing i386 packages for Red Hat Enterprise Linux Desktop and RHEL Desktop Workstation.

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 CUPS handled references in its file descriptors-handling interface. A remote attacker could, in a specially-crafted way, query for the list of current print jobs for a specific printer, leading to a denial of service (cupsd crash). (CVE-2009-3553)

Several cross-site scripting (XSS) flaws were found in the way the CUPS web server interface processed HTML form content. If a remote attacker could trick a local user who is logged into the CUPS web interface into visiting a specially-crafted HTML page, the attacker could retrieve and potentially modify confidential CUPS administration data. (CVE-2009-2820)

Red Hat would like to thank Aaron Sigel of Apple Product Security for responsibly reporting the CVE-2009-2820 issue.

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

Solution

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 This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

Updated Packages

• cups-devel-1.3.7-11.el5_4.4.s390x.rpm
• cups-lpd-1.3.7-11.el5_4.4.x86_64.rpm
• cups-1.3.7-11.el5_4.4.src.rpm
• cups-libs-1.3.7-11.el5_4.4.s390.rpm
• cups-1.3.7-11.el5_4.4.i386.rpm
• cups-devel-1.3.7-11.el5_4.4.ppc.rpm
• cups-1.3.7-11.el5_4.4.s390x.rpm
• cups-devel-1.3.7-11.el5_4.4.ia64.rpm
• cups-libs-1.3.7-11.el5_4.4.ppc64.rpm
• cups-lpd-1.3.7-11.el5_4.4.s390x.rpm
• cups-lpd-1.3.7-11.el5_4.4.i386.rpm
• cups-libs-1.3.7-11.el5_4.4.ia64.rpm
• cups-devel-1.3.7-11.el5_4.4.ppc64.rpm
• cups-libs-1.3.7-11.el5_4.4.ppc.rpm
• cups-devel-1.3.7-11.el5_4.4.i386.rpm
• cups-libs-1.3.7-11.el5_4.4.x86_64.rpm
• cups-1.3.7-11.el5_4.4.x86_64.rpm
• cups-lpd-1.3.7-11.el5_4.4.ppc.rpm
• cups-devel-1.3.7-11.el5_4.4.s390.rpm
• cups-libs-1.3.7-11.el5_4.4.i386.rpm
• cups-libs-1.3.7-11.el5_4.4.s390x.rpm
• cups-lpd-1.3.7-11.el5_4.4.ia64.rpm
• cups-1.3.7-11.el5_4.4.ppc.rpm
• cups-devel-1.3.7-11.el5_4.4.x86_64.rpm
• cups-1.3.7-11.el5_4.4.ia64.rpm

Fixes

• This content is not included.BZ - 529833
• This content is not included.BZ - 530111

CVEs

• CVE-2009-2820
• CVE-2009-3553

References

• http://www.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.