RHSA-2010:0755 - Security Advisory

Topic

Updated cups packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 4.

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.

Description

The Common UNIX Printing System (CUPS) provides a portable printing layer
for UNIX operating systems. The CUPS "pdftops" filter converts Portable
Document Format (PDF) files to PostScript.

Multiple flaws were discovered in the CUPS "pdftops" filter. An attacker
could create a malicious PDF file that, when printed, would cause "pdftops"
to crash or, potentially, execute arbitrary code as the "lp" user.
(CVE-2010-3702, CVE-2009-3609)

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.

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

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.8 ppc

Fixes

• BZ - 526893 - CVE-2009-3609 xpdf/poppler: ImageStream::ImageStream integer overflow
• BZ - 595245 - CVE-2010-3702 xpdf: uninitialized Gfx::parser pointer dereference

CVEs

• CVE-2009-3609
• CVE-2010-3702

References

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