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Red Hat: RHSA-2012-0407-01 Moderate: Buffer Overflow in libpng

red hat
Calendar Grey March 20, 2012
Scroller Redhat
Cautionary notice regarding libpng patch on Red Hat Linux, focused on rectifying buffer overflow vulnerabilities within image processing.
Updated libpng packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6

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 https://access.redhat.com/articles/11258

Summary

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 compressed 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-2011-3045)
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 1.2.48. All running applications using libpng must be restarted for the update to take effect.

Topics%20covered

Topics Covered

security advisory moderate Red Hat buffer overflow libpng image format

References

https://access.redhat.com/security/cve/CVE-2011-3045 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: libpng-1.2.10-16.el5_8.i386.rpm libpng-debuginfo-1.2.10-16.el5_8.i386.rpm
x86_64: libpng-1.2.10-16.el5_8.i386.rpm libpng-1.2.10-16.el5_8.x86_64.rpm libpng-debuginfo-1.2.10-16.el5_8.i386.rpm libpng-debuginfo-1.2.10-16.el5_8.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: libpng-debuginfo-1.2.10-16.el5_8.i386.rpm libpng-devel-1.2.10-16.el5_8.i386.rpm
x86_64: libpng-debuginfo-1.2.10-16.el5_8.i386.rpm libpng-debuginfo-1.2.10-16.el5_8.x86_64.rpm libpng-devel-1.2.10-16.el5_8.i386.rpm libpng-devel-1.2.10-16.el5_8.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: libpng-1.2.10-16.el5_8.i386.rpm libpng-debuginfo-1.2.10-16.el5_8.i386.rpm libpng-devel-1.2.10-16.el5_8.i386.rpm
ia64: libpng-1.2.10-16.el5_8.i386.rpm libpng-1.2.10-16.el5_8.ia64.rpm libpng-debuginfo-1.2.10-16.el5_8.i386.rpm libpng-debuginfo-1.2.10-16.el5_8.ia64.rpm libpng-devel-1.2.10-16.el5_8.ia64.rpm
ppc: libpng-1.2.10-16.el5_8.ppc.rpm libpng-1.2.10-16.el5_8.ppc64.rpm libpng-debuginfo-1.2.10-16.el5_8.ppc.rpm libpng-debuginfo-1.2.10-16.el5_8.ppc64.rpm libpng-devel-1.2.10-16.el5_8.ppc.rpm libpng-devel-1.2.10-16.el5_8.ppc64.rpm
s390x: libpng-1.2.10-16.el5_8.s390.rpm libpng-1.2.10-16.el5_8.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2012:0407-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:0407.html
Issue date: 2012-03-20

Topic

Updated libpng packages that fix one security issue are now available forRed Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat buffer overflow libpng image format

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

799000 - CVE-2011-3045 libpng: buffer overflow in png_inflate caused by invalid type conversions

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