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Red Hat Enterprise Linux 4 RHSA-2011:1103-01 Moderate: Libpng Crash

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Calendar Grey July 28, 2011
Scroller Redhat Esm H88
Red Hat released a new advisory focusing on a moderate-risk libpng patch, emphasizing a crucial resolution for vulnerabilities in image handling.
Updated libpng and libpng10 packages that fix one security issue are now available for Red Hat Enterprise Linux 4

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/kb/docs/DOC-11259

Summary

The libpng packages contain a library of functions for creating and manipulating PNG (Portable Network Graphics) image format files.
An uninitialized memory read issue was found in the way libpng processed certain PNG images that use the Physical Scale (sCAL) extension. An attacker could create a specially-crafted PNG image that, when opened, could cause an application using libpng to crash. (CVE-2011-2692)
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.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Enterprise Linux libpng application crash image processing

References

https://access.redhat.com/security/cve/CVE-2011-2692 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: libpng-1.2.7-8.el4.i386.rpm libpng-debuginfo-1.2.7-8.el4.i386.rpm libpng-devel-1.2.7-8.el4.i386.rpm libpng10-1.0.16-9.el4.i386.rpm libpng10-debuginfo-1.0.16-9.el4.i386.rpm libpng10-devel-1.0.16-9.el4.i386.rpm
ia64: libpng-1.2.7-8.el4.i386.rpm libpng-1.2.7-8.el4.ia64.rpm libpng-debuginfo-1.2.7-8.el4.i386.rpm libpng-debuginfo-1.2.7-8.el4.ia64.rpm libpng-devel-1.2.7-8.el4.ia64.rpm libpng10-1.0.16-9.el4.i386.rpm libpng10-1.0.16-9.el4.ia64.rpm libpng10-debuginfo-1.0.16-9.el4.i386.rpm libpng10-debuginfo-1.0.16-9.el4.ia64.rpm libpng10-devel-1.0.16-9.el4.ia64.rpm
ppc: libpng-1.2.7-8.el4.ppc.rpm libpng-1.2.7-8.el4.ppc64.rpm libpng-debuginfo-1.2.7-8.el4.ppc.rpm libpng-debuginfo-1.2.7-8.el4.ppc64.rpm libpng-devel-1.2.7-8.el4.ppc.rpm libpng10-1.0.16-9.el4.ppc.rpm libpng10-1.0.16-9.el4.ppc64.rpm libpng10-debuginfo-1.0.16-9.el4.ppc.rpm libpng10-debuginfo-1.0.16-9.el4.ppc64.rpm libpng10-devel-1.0.16-9.el4.ppc.rpm
s390: libpng-1.2.7-8.el4.s390.rpm libpng-debuginfo-1.2.7-8.el4.s390.rpm libpng-devel-1.2.7-8.el4.s390.rpm libpng10-1.0.16-9.el4.s390.rpm libpng10-debuginfo-1.0.16-9.el4.s390.rpm libpng10-devel-1.0.16-9.el4.s390.rpm
s390x: libpng-1.2.7-8.el4.s390.rpm libpng-1.2.7-8.el4.s390x.rpm libpng-debuginfo-1.2.7-8.el4.s390.rpm

Read the Full Advisory


Advisory ID: RHSA-2011:1103-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:1103.html
Issue date: 2011-07-28

Topic

Updated libpng and libpng10 packages that fix one security issue are nowavailable for Red Hat Enterprise Linux 4.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 Enterprise Linux libpng application crash image processing

Relevant Releases Architectures

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

Bugs Fixed

720612 - CVE-2011-2692 libpng: Invalid read when handling empty sCAL chunks

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