- Issued:
- 2011-07-28
- Updated:
- 2011-07-28
RHSA-2011:1103 - Moderate: libpng security update
Synopsis
Moderate: libpng security update
Type/Severity
Security Advisory Moderate
Topic
Updated libpng and libpng10 packages that fix one security issue are now available for Red Hat Enterprise Linux 4.
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.
Description
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.
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
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 4.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 4.8 | ia64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 4.8 | i386 |
| Red Hat Enterprise Linux for Power, big endian | 4 | ppc |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 4.8 | ppc |
| Red Hat Enterprise Linux for IBM z Systems | 4 | s390x |
| Red Hat Enterprise Linux for IBM z Systems | 4 | s390 |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 4.8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 4.8 | s390 |
| Red Hat Enterprise Linux Workstation | 4 | x86_64 |
| Red Hat Enterprise Linux Workstation | 4 | ia64 |
| Red Hat Enterprise Linux Workstation | 4 | i386 |
| Red Hat Enterprise Linux Server | 4 | x86_64 |
| Red Hat Enterprise Linux Server | 4 | ia64 |
| Red Hat Enterprise Linux Server | 4 | i386 |
| Red Hat Enterprise Linux Desktop | 4 | x86_64 |
| Red Hat Enterprise Linux Desktop | 4 | i386 |
Updated Packages
- libpng10-devel-1.0.16-9.el4.ia64.rpm
- libpng-devel-1.2.7-8.el4.ia64.rpm
- libpng10-devel-1.0.16-9.el4.s390.rpm
- libpng10-1.0.16-9.el4.src.rpm
- libpng10-1.0.16-9.el4.i386.rpm
- libpng10-1.0.16-9.el4.x86_64.rpm
- libpng10-1.0.16-9.el4.s390x.rpm
- libpng10-1.0.16-9.el4.ppc.rpm
- libpng-devel-1.2.7-8.el4.i386.rpm
- libpng10-devel-1.0.16-9.el4.ppc.rpm
- libpng10-1.0.16-9.el4.s390.rpm
- libpng-1.2.7-8.el4.s390x.rpm
- libpng10-devel-1.0.16-9.el4.i386.rpm
- libpng-devel-1.2.7-8.el4.s390x.rpm
- libpng-1.2.7-8.el4.ppc64.rpm
- libpng-1.2.7-8.el4.s390.rpm
- libpng10-devel-1.0.16-9.el4.s390x.rpm
- libpng10-1.0.16-9.el4.ia64.rpm
- libpng-1.2.7-8.el4.i386.rpm
- libpng-1.2.7-8.el4.x86_64.rpm
- libpng10-devel-1.0.16-9.el4.x86_64.rpm
- libpng10-1.0.16-9.el4.ppc64.rpm
- libpng-devel-1.2.7-8.el4.s390.rpm
- libpng-1.2.7-8.el4.ppc.rpm
- libpng-devel-1.2.7-8.el4.ppc.rpm
- libpng-1.2.7-8.el4.ia64.rpm
- libpng-devel-1.2.7-8.el4.x86_64.rpm
- libpng-1.2.7-8.el4.src.rpm
Fixes
CVEs
References
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.