Red Hat Security Advisory: libpng security update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2012:0523 Final 1 1 2012-04-25T12:33:00Z Current version 2012-04-25T12:33:00Z 2012-04-25T12:33:00Z Red Hat rhsa-to-cvrf 1.0.1478 2012-05-01T14:46:48Z Updated libpng packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having moderate 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. 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 the way libpng processed tEXt chunks in PNG image files. An attacker could create a specially-crafted PNG image file 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-2011-3048) Users of libpng should upgrade to these updated packages, which correct this issue. For Red Hat Enterprise Linux 5, they contain a backported patch. For Red Hat Enterprise Linux 6, they upgrade libpng to version 1.2.49. All running applications using libpng must be restarted for the update to take effect. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate https://rhn.redhat.com/errata/RHSA-2012-0523.html https://rhn.redhat.com/errata/RHSA-2012-0523.html https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/security/updates/classification/#moderate Red Hat Enterprise Linux Workstation Optional (v. 6) Red Hat Enterprise Linux Desktop (v. 5 client) Red Hat Enterprise Linux HPC Node (v. 6) Red Hat Enterprise Linux Desktop (v. 6) Red Hat Enterprise Linux Server Optional (v. 6) Red Hat Enterprise Linux HPC Node Optional (v. 6) Red Hat Enterprise Linux Server (v. 6) Red Hat Enterprise Linux Workstation (v. 6) Red Hat Enterprise Linux Desktop Optional (v. 6) Red Hat Enterprise Linux (v. 5 server) RHEL Desktop Workstation (v. 5 client) libpng-1.2.10-17.el5_8.src.rpm libpng-1.2.49-1.el6_2.src.rpm libpng-1.2.49-1.el6_2 as a component of Red Hat Enterprise Linux Workstation Optional (v. 6) libpng-1.2.10-17.el5_8 as a component of Red Hat Enterprise Linux Desktop (v. 5 client) libpng-1.2.49-1.el6_2 as a component of Red Hat Enterprise Linux HPC Node (v. 6) libpng-1.2.49-1.el6_2 as a component of Red Hat Enterprise Linux Desktop (v. 6) libpng-1.2.49-1.el6_2 as a component of Red Hat Enterprise Linux Server Optional (v. 6) libpng-1.2.49-1.el6_2 as a component of Red Hat Enterprise Linux HPC Node Optional (v. 6) libpng-1.2.49-1.el6_2 as a component of Red Hat Enterprise Linux Server (v. 6) libpng-1.2.49-1.el6_2 as a component of Red Hat Enterprise Linux Workstation (v. 6) libpng-1.2.49-1.el6_2 as a component of Red Hat Enterprise Linux Desktop Optional (v. 6) libpng-1.2.10-17.el5_8 as a component of Red Hat Enterprise Linux (v. 5 server) libpng-1.2.10-17.el5_8 as a component of RHEL Desktop Workstation (v. 5 client) A heap-based buffer overflow flaw was found in the way libpng processed tEXt chunks in PNG image files. An attacker could create a specially-crafted PNG image file 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. 2012-03-29T00:00:00Z 2012-03-29T00:00:00Z CVE-2011-3048 5Client-5.8.Z:libpng-1.2.10-17.el5_8 5Client-Workstation-5.8.Z:libpng-1.2.10-17.el5_8 5Server-5.8.Z:libpng-1.2.10-17.el5_8 6Client-6.2.z:libpng-1.2.49-1.el6_2 6Client-optional-6.2.z:libpng-1.2.49-1.el6_2 6ComputeNode-6.2.z:libpng-1.2.49-1.el6_2 6ComputeNode-optional-6.2.z:libpng-1.2.49-1.el6_2 6Server-6.2.z:libpng-1.2.49-1.el6_2 6Server-optional-6.2.z:libpng-1.2.49-1.el6_2 6Workstation-6.2.z:libpng-1.2.49-1.el6_2 6Workstation-optional-6.2.z:libpng-1.2.49-1.el6_2 Moderate 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P 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 https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2012-0523.html https://www.redhat.com/security/data/cve/CVE-2011-3048.html CVE-2011-3048 https://bugzilla.redhat.com/show_bug.cgi?id=808139 bz#808139: CVE-2011-3048 libpng: memory corruption flaw