Topic

Updated java-1.7.0-openjdk packages that fix two security issues are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having critical
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

These packages provide the OpenJDK 7 Java Runtime Environment and the
OpenJDK 7 Software Development Kit.

An integer overflow flaw was found in the way the 2D component handled
certain sample model instances. A specially-crafted sample model instance
could cause Java Virtual Machine memory corruption and, possibly, lead to
arbitrary code execution with virtual machine privileges. (CVE-2013-0809)

It was discovered that the 2D component did not properly reject certain
malformed images. Specially-crafted raster parameters could cause Java
Virtual Machine memory corruption and, possibly, lead to arbitrary code
execution with virtual machine privileges. (CVE-2013-1493)

Note: If the web browser plug-in provided by the icedtea-web package was
installed, the issues exposed via Java applets could have been exploited
without user interaction if a user visited a malicious website.

This erratum also upgrades the OpenJDK package to IcedTea7 2.3.8. Refer to
the NEWS file, linked to in the References, for further information.

All users of java-1.7.0-openjdk are advised to upgrade to these updated
packages, which resolve these issues. All running instances of OpenJDK Java
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
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.4 i386
• Red Hat Enterprise Linux Server - AUS 6.4 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 i386
• Red Hat Gluster Storage Server for On-premise 2.1 x86_64
• Red Hat Storage for Public Cloud (via RHUI) 2.1 x86_64

Fixes

• BZ - 917550 - CVE-2013-0809 OpenJDK: Specially crafted sample model integer overflow (2D, 8007014)
• BZ - 917553 - CVE-2013-1493 OpenJDK: CMM malformed raster memory corruption (2D, 8007675)

CVEs

• CVE-2013-1493
• CVE-2013-0809

References

• https://access.redhat.com/security/updates/classification/#critical
• http://icedtea.classpath.org/hg/release/icedtea7-2.3/file/icedtea-2.3.8/NEWS