Issued:

2009-03-04

Updated:

2009-03-04

RHSA-2009:0333 - Moderate: libpng security update

Synopsis

Moderate: libpng security update

Type/Severity

Security Advisory Moderate

Topic

Updated libpng and libpng10 packages that fix a couple of security issues are now available for Red Hat Enterprise Linux 2.1, 4, and 5.

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

Description

The libpng packages contain a library of functions for creating and manipulating PNG (Portable Network Graphics) image format files.

A flaw was discovered in libpng that could result in libpng trying to free() random memory if certain, unlikely error conditions occurred. If a carefully-crafted PNG file was loaded by an application linked against libpng, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2009-0040)

A flaw was discovered in the way libpng handled PNG images containing "unknown" chunks. If an application linked against libpng attempted to process a malformed, unknown chunk in a malicious PNG image, it could cause the application to crash. (CVE-2008-1382)

Users of libpng and libpng10 should upgrade to these updated packages, which contain backported patches to correct these issues. All running applications using libpng or libpng10 must be restarted for the update to take effect.

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

• libpng10-devel-1.0.16-3.el4_7.3.ppc.rpm
• libpng-1.2.10-7.1.el5_3.2.x86_64.rpm
• libpng-1.2.10-7.1.el5_3.2.i386.rpm
• libpng-1.0.14-12.ia64.rpm
• libpng-devel-1.2.10-7.1.el5_3.2.i386.rpm
• libpng10-1.0.16-3.el4_7.3.x86_64.rpm
• libpng-1.2.7-3.el4_7.2.x86_64.rpm
• libpng10-devel-1.0.16-3.el4_7.3.x86_64.rpm
• libpng-1.2.7-3.el4_7.2.s390.rpm
• libpng10-1.0.16-3.el4_7.3.s390x.rpm
• libpng-1.2.10-7.1.el5_3.2.ia64.rpm
• libpng-1.2.10-7.1.el5_3.2.ppc.rpm
• libpng10-1.0.16-3.el4_7.3.ppc64.rpm
• libpng10-devel-1.0.16-3.el4_7.3.s390.rpm
• libpng-devel-1.2.7-3.el4_7.2.x86_64.rpm
• libpng10-1.0.16-3.el4_7.3.ppc.rpm
• libpng-1.2.10-7.1.el5_3.2.s390x.rpm
• libpng-devel-1.2.7-3.el4_7.2.s390x.rpm
• libpng10-1.0.16-3.el4_7.3.ia64.rpm
• libpng-devel-1.2.7-3.el4_7.2.i386.rpm
• libpng-devel-1.0.14-12.ia64.rpm
• libpng-1.2.7-3.el4_7.2.ppc.rpm
• libpng-devel-1.2.10-7.1.el5_3.2.x86_64.rpm
• libpng10-devel-1.0.16-3.el4_7.3.s390x.rpm
• libpng-1.0.14-12.i386.rpm
• libpng-devel-1.2.7-3.el4_7.2.s390.rpm
• libpng-devel-1.2.7-3.el4_7.2.ppc.rpm
• libpng10-devel-1.0.16-3.el4_7.3.i386.rpm
• libpng-1.2.7-3.el4_7.2.i386.rpm
• libpng10-devel-1.0.16-3.el4_7.3.ia64.rpm
• libpng10-1.0.16-3.el4_7.3.i386.rpm
• libpng-devel-1.2.10-7.1.el5_3.2.ia64.rpm
• libpng-devel-1.2.10-7.1.el5_3.2.s390.rpm
• libpng-1.2.10-7.1.el5_3.2.s390.rpm
• libpng-1.2.7-3.el4_7.2.ia64.rpm
• libpng-devel-1.2.10-7.1.el5_3.2.ppc.rpm
• libpng-devel-1.2.10-7.1.el5_3.2.s390x.rpm
• libpng-1.2.10-7.1.el5_3.2.ppc64.rpm
• libpng-devel-1.2.7-3.el4_7.2.ia64.rpm
• libpng10-1.0.16-3.el4_7.3.s390.rpm
• libpng-1.2.7-3.el4_7.2.s390x.rpm
• libpng-devel-1.0.14-12.i386.rpm
• libpng-1.2.7-3.el4_7.2.ppc64.rpm
• libpng-devel-1.2.10-7.1.el5_3.2.ppc64.rpm

Fixes

• This content is not included.BZ - 486355
• This content is not included.BZ - 441839

CVEs

• CVE-2008-1382
• CVE-2009-0040

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.