RHSA-2008:1028 - Security Advisory

Topic

Updated cups packages that fix a security issue are now available for Red
Hat Enterprise Linux 3.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

Description

The Common UNIX® Printing System (CUPS) provides a portable printing layer
for UNIX operating systems.

An integer overflow flaw, leading to a heap buffer overflow, was discovered
in the Portable Network Graphics (PNG) decoding routines used by the CUPS
image-converting filters, "imagetops" and "imagetoraster". An attacker
could create a malicious PNG file that could, potentially, execute
arbitrary code as the "lp" user if the file was printed. (CVE-2008-5286)

CUPS users should upgrade to these updated packages, which contain a
backported patch to correct this issue.

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
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 3 x86_64
• Red Hat Enterprise Linux Server 3 ia64
• Red Hat Enterprise Linux Server 3 i386
• Red Hat Enterprise Linux Workstation 3 x86_64
• Red Hat Enterprise Linux Workstation 3 ia64
• Red Hat Enterprise Linux Workstation 3 i386
• Red Hat Enterprise Linux Desktop 3 x86_64
• Red Hat Enterprise Linux Desktop 3 i386
• Red Hat Enterprise Linux for IBM z Systems 3 s390x
• Red Hat Enterprise Linux for IBM z Systems 3 s390
• Red Hat Enterprise Linux for Power, big endian 3 ppc

Fixes

• BZ - 473905 - CVE-2008-5286 cups: Incomplete fix for CVE-2008-1722

CVEs

• CVE-2008-5286

References

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