Issued:

2012-02-20

Updated:

2012-02-20

RHSA-2012:0317 - Important: libpng security update

Synopsis

Important: libpng security update

Type/Severity

Security Advisory Important

Topic

Updated libpng and libpng10 packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Description

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

A heap-based buffer overflow flaw was found in libpng. An attacker could create a specially-crafted PNG image that, when opened, could cause an application using libpng to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-3026)

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

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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

Updated Packages

• libpng-1.2.10-15.el5_7.ppc64.rpm
• libpng10-1.0.16-10.el4.x86_64.rpm
• libpng-1.2.46-2.el6_2.src.rpm
• libpng-devel-1.2.46-2.el6_2.x86_64.rpm
• libpng10-devel-1.0.16-10.el4.s390x.rpm
• libpng-devel-1.2.10-15.el5_7.s390.rpm
• libpng10-1.0.16-10.el4.ia64.rpm
• libpng-1.2.7-9.el4.ppc.rpm
• libpng-1.2.10-15.el5_7.s390x.rpm
• libpng-devel-1.2.10-15.el5_7.x86_64.rpm
• libpng-devel-1.2.10-15.el5_7.ia64.rpm
• libpng10-1.0.16-10.el4.ppc64.rpm
• libpng-1.2.10-15.el5_7.ia64.rpm
• libpng-static-1.2.46-2.el6_2.i686.rpm
• libpng-devel-1.2.7-9.el4.ppc.rpm
• libpng10-1.0.16-10.el4.src.rpm
• libpng-1.2.10-15.el5_7.i386.rpm
• libpng10-1.0.16-10.el4.i386.rpm
• libpng-1.2.7-9.el4.ppc64.rpm
• libpng-static-1.2.46-2.el6_2.ppc64.rpm
• libpng-static-1.2.46-2.el6_2.x86_64.rpm
• libpng-devel-1.2.10-15.el5_7.i386.rpm
• libpng-debuginfo-1.2.46-2.el6_2.ppc.rpm
• libpng-1.2.46-2.el6_2.ppc.rpm
• libpng-1.2.10-15.el5_7.ppc.rpm
• libpng-devel-1.2.46-2.el6_2.s390x.rpm
• libpng-debuginfo-1.2.46-2.el6_2.x86_64.rpm
• libpng-1.2.10-15.el5_7.s390.rpm
• libpng10-devel-1.0.16-10.el4.ppc.rpm
• libpng-1.2.7-9.el4.i386.rpm
• libpng-1.2.46-2.el6_2.ppc64.rpm
• libpng10-1.0.16-10.el4.ppc.rpm
• libpng-devel-1.2.46-2.el6_2.ppc.rpm
• libpng-devel-1.2.46-2.el6_2.ppc64.rpm
• libpng10-devel-1.0.16-10.el4.x86_64.rpm
• libpng10-devel-1.0.16-10.el4.i386.rpm
• libpng-devel-1.2.10-15.el5_7.ppc64.rpm
• libpng-devel-1.2.7-9.el4.ia64.rpm
• libpng-debuginfo-1.2.46-2.el6_2.s390x.rpm
• libpng10-devel-1.0.16-10.el4.ia64.rpm
• libpng-devel-1.2.7-9.el4.s390x.rpm
• libpng-1.2.46-2.el6_2.i686.rpm
• libpng-1.2.10-15.el5_7.x86_64.rpm
• libpng-devel-1.2.7-9.el4.i386.rpm
• libpng-devel-1.2.10-15.el5_7.s390x.rpm
• libpng-1.2.46-2.el6_2.s390x.rpm
• libpng-1.2.7-9.el4.s390x.rpm
• libpng10-1.0.16-10.el4.s390.rpm
• libpng-1.2.7-9.el4.ia64.rpm
• libpng-1.2.46-2.el6_2.s390.rpm
• libpng-1.2.10-15.el5_7.src.rpm
• libpng-1.2.7-9.el4.x86_64.rpm
• libpng-debuginfo-1.2.46-2.el6_2.i686.rpm
• libpng-devel-1.2.46-2.el6_2.i686.rpm
• libpng-1.2.46-2.el6_2.x86_64.rpm
• libpng-static-1.2.46-2.el6_2.s390x.rpm
• libpng-devel-1.2.46-2.el6_2.s390.rpm
• libpng10-devel-1.0.16-10.el4.s390.rpm
• libpng-debuginfo-1.2.46-2.el6_2.ppc64.rpm
• libpng10-1.0.16-10.el4.s390x.rpm
• libpng-1.2.7-9.el4.s390.rpm
• libpng-devel-1.2.7-9.el4.s390.rpm
• libpng-devel-1.2.7-9.el4.x86_64.rpm
• libpng-1.2.7-9.el4.src.rpm
• libpng-devel-1.2.10-15.el5_7.ppc.rpm
• libpng-debuginfo-1.2.46-2.el6_2.s390.rpm

Fixes

• This content is not included.BZ - 790737

CVEs

• CVE-2011-3026

References

• https://access.redhat.com/security/updates/classification/#important

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.