4.108. java-1.6.0-openjdk

Updated java-1.6.0-openjdk packages that fix several 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 score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) associated with each description below.
These packages provide the OpenJDK 6 Java Runtime Environment and the OpenJDK 6 Software Development Kit.

Security Fixes

CVE-2012-0497
It was discovered that Java2D did not properly check graphics rendering objects before passing them to the native renderer. Malicious input, or an untrusted Java application or applet could use this flaw to crash the Java Virtual Machine (JVM), or bypass Java sandbox restrictions.
CVE-2012-0505
It was discovered that the exception thrown on deserialization failure did not always contain a proper identification of the cause of the failure. An untrusted Java application or applet could use this flaw to bypass Java sandbox restrictions.
CVE-2011-3571
The AtomicReferenceArray class implementation did not properly check if the array was of the expected Object[] type. A malicious Java application or applet could use this flaw to bypass Java sandbox restrictions.
CVE-2012-0503
It was discovered that the use of TimeZone.setDefault() was not restricted by the SecurityManager, allowing an untrusted Java application or applet to set a new default time zone, and hence bypass Java sandbox restrictions.
CVE-2011-5035
The HttpServer class did not limit the number of headers read from HTTP requests. A remote attacker could use this flaw to make an application using HttpServer use an excessive amount of CPU time via a specially-crafted request. This update introduces a header count limit controlled using the sun.net.httpserver.maxReqHeaders property. The default value is 200.
CVE-2011-3563
The Java Sound component did not properly check buffer boundaries. Malicious input, or an untrusted Java application or applet could use this flaw to cause the Java Virtual Machine (JVM) to crash or disclose a portion of its memory.
CVE-2012-0502
A flaw was found in the AWT KeyboardFocusManager that could allow an untrusted Java application or applet to acquire keyboard focus and possibly steal sensitive information.
CVE-2012-0506
It was discovered that the CORBA (Common Object Request Broker Architecture) implementation in Java did not properly protect repository identifiers on certain CORBA objects. This could have been used to modify immutable object data.
CVE-2012-0501
An off-by-one flaw, causing a stack overflow, was found in the unpacker for ZIP files. A specially-crafted ZIP archive could cause the Java Virtual Machine (JVM) to crash when opened.

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 IcedTea6 1.10.6. Refer to the NEWS file for more information:
All users of java-1.6.0-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.
Updated java-1.6.0-openjdk packages that fix several 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 score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) associated with each description below.
These packages provide the OpenJDK 6 Java Runtime Environment and the OpenJDK 6 Software Development Kit.

Security Fixes

CVE-2012-1711, CVE-2012-1719
Multiple flaws were discovered in the CORBA (Common Object Request Broker Architecture) implementation in Java. A malicious Java application or applet could use these flaws to bypass Java sandbox restrictions or modify immutable object data.
CVE-2012-1716
It was discovered that the SynthLookAndFeel class from Swing did not properly prevent access to certain UI elements from outside the current application context. A malicious Java application or applet could use this flaw to crash the Java Virtual Machine, or bypass Java sandbox restrictions.
CVE-2012-1713
Multiple flaws were discovered in the font manager's layout lookup implementation. A specially-crafted font file could cause the Java Virtual Machine to crash or, possibly, execute arbitrary code with the privileges of the user running the virtual machine.
CVE-2012-1723, CVE-2012-1725
Multiple flaws were found in the way the Java HotSpot Virtual Machine verified the bytecode of the class file to be executed. A specially-crafted Java application or applet could use these flaws to crash the Java Virtual Machine, or bypass Java sandbox restrictions.
CVE-2012-1724
It was discovered that the Java XML parser did not properly handle certain XML documents. An attacker able to make a Java application parse a specially-crafted XML file could use this flaw to make the XML parser enter an infinite loop.
CVE-2012-1718
It was discovered that the Java security classes did not properly handle Certificate Revocation Lists (CRL). CRL containing entries with duplicate certificate serial numbers could have been ignored.
CVE-2012-1717
It was discovered that various classes of the Java Runtime library could create temporary files with insecure permissions. A local attacker could use this flaw to gain access to the content of such temporary files.

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 IcedTea6 1.11.3. Refer to the NEWS file for further information:
All users of java-1.6.0-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.
An updated java-1.6.0-openjdk package that fixes two bugs is now available for Red Hat Enterprise Linux 6.
These packages provide the OpenJDK 6 Java Runtime Environment and the OpenJDK 6 Software Development Kit.
This updated java-1.6.0-openjdk package includes fixes for the following bugs:
BZ#722310
The java-1.6.0-openjdk package has been upgraded to the upstream version 1.10.4, which provides a number of bug fixes and enhancements over the previous version.
BZ#708201
Installing of OpenJDK or execution of a Java program, which was using other than terminal fonts, could have terminated unexpectedly with the following error:
Exception in thread "main"
java.lang.Error: Probable fatal error:No fonts found.
This happened because the fontconfig library was not installed and the font enumeration failed. With this update, OpenJDK depends on fontconfig and the problem no longer occurs.
All users of java-1.6.0-openjdk are advised to upgrade to this updated package, which fixed these bugs.
Updated java-1.6.0-openjdk packages that fix one bug are now available for Red Hat Enterprise Linux 6.
The java-1.6.0-openjdk package provides the OpenJDK 6 Java Runtime Environment and the OpenJDK 6 Software Development Kit.
The java-1.6.0-openjdk package has been upgraded to upstream version 1.2.3, which provides a number of bug fixes and enhancements over the previous version. In addition, HugePage support is now provided and can be activated with the -XX:+UseLargePages flag. (BZ#123456)

Bug Fix

BZ#751730
Prior to this update, security restrictions caused the RMI registry to stop working correctly. As a consequence, a remote RMI client could execute code on the RMI server with unrestricted privileges.This update adjusts the RMI registry so that it now works as expected.

Enhancements

BZ#567404
This update adds support for the Rhino JavaScript interpreter to the java-1.6.0-openjdk package.
BZ#727598
This update upgrades IcedTea6 to upstream version 1.10.
All users of java-1.6.0-openjdk are advised to upgrade to this updated package, which fixes these bugs and adds these enhancements.