Critical: java-1.7.0-openjdk security update
Security Advisory: Critical
Updated java-1.7.0-openjdk packages that fix various 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.
These packages provide the OpenJDK 7 Java Runtime Environment and the
OpenJDK 7 Software Development Kit.
An input validation flaw was discovered in the font layout engine in the 2D
component. A specially crafted font file could trigger Java Virtual Machine
memory corruption when processed. An untrusted Java application or applet
could possibly use this flaw to bypass Java sandbox restrictions.
(CVE-2013-5907)
Multiple improper permission check issues were discovered in the CORBA,
JNDI, and Libraries components in OpenJDK. An untrusted Java application or
applet could use these flaws to bypass Java sandbox restrictions.
(CVE-2014-0428, CVE-2014-0422, CVE-2013-5893)
Multiple improper permission check issues were discovered in the
Serviceability, Security, CORBA, JAAS, JAXP, and Networking components in
OpenJDK. An untrusted Java application or applet could use these flaws to
bypass certain Java sandbox restrictions. (CVE-2014-0373, CVE-2013-5878,
CVE-2013-5910, CVE-2013-5896, CVE-2013-5884, CVE-2014-0416, CVE-2014-0376,
CVE-2014-0368)
It was discovered that the Beans component did not restrict processing of
XML external entities. This flaw could cause a Java application using Beans
to leak sensitive information, or affect application availability.
(CVE-2014-0423)
It was discovered that the JSSE component could leak timing information
during the TLS/SSL handshake. This could possibly lead to disclosure of
information about the used encryption keys. (CVE-2014-0411)
Note: The java-1.7.0-openjdk package shipped with Red Hat Enterprise Linux
6.5 via RHBA-2013:1611 replaced "java7" with "java" in the provides list.
This update re-adds "java7" to the provides list to maintain backwards
compatibility with releases prior to Red Hat Enterprise Linux 6.5.
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.
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.
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/site/articles/11258
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