RHSA-2010:0339 - Security Advisory

Topic

Updated java-1.6.0-openjdk packages that fix several security issues are
now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
important 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 6 Java Runtime Environment and the
OpenJDK 6 Software Development Kit. The Java Runtime Environment (JRE)
contains the software and tools that users need to run applications written
using the Java programming language.

A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure
Sockets Layer) protocols handle session renegotiation. A man-in-the-middle
attacker could use this flaw to prefix arbitrary plain text to a client's
session (for example, an HTTPS connection to a website). This could force
the server to process an attacker's request as if authenticated using the
victim's credentials. (CVE-2009-3555)

This update disables renegotiation in the Java Secure Socket Extension
(JSSE) component. Unsafe renegotiation can be re-enabled using the
sun.security.ssl.allowUnsafeRenegotiation property. Refer to the following
Knowledgebase article for details:
http://kbase.redhat.com/faq/docs/DOC-20491

A number of flaws have been fixed in the Java Virtual Machine (JVM) and in
various Java class implementations. These flaws could allow an unsigned
applet or application to bypass intended access restrictions.
(CVE-2010-0082, CVE-2010-0084, CVE-2010-0085, CVE-2010-0088, CVE-2010-0094)

An untrusted applet could access clipboard information if a drag operation
was performed over that applet's canvas. This could lead to an information
leak. (CVE-2010-0091)

The rawIndex operation incorrectly handled large values, causing the
corruption of internal memory structures, resulting in an untrusted applet
or application crashing. (CVE-2010-0092)

The System.arraycopy operation incorrectly handled large index values,
potentially causing array corruption in an untrusted applet or application.
(CVE-2010-0093)

Subclasses of InetAddress may incorrectly interpret network addresses,
allowing an untrusted applet or application to bypass network access
restrictions. (CVE-2010-0095)

In certain cases, type assignments could result in "non-exact" interface
types. This could be used to bypass type-safety restrictions.
(CVE-2010-0845)

A buffer overflow flaw in LittleCMS (embedded in OpenJDK) could cause an
untrusted applet or application using color profiles from untrusted sources
to crash. (CVE-2010-0838)

An input validation flaw was found in the JRE unpack200 functionality. An
untrusted applet or application could use this flaw to elevate its
privileges. (CVE-2010-0837)

Deferred calls to trusted applet methods could be granted incorrect
permissions, allowing an untrusted applet or application to extend its
privileges. (CVE-2010-0840)

A missing input validation flaw in the JRE could allow an attacker to crash
an untrusted applet or application. (CVE-2010-0848)

A flaw in Java2D could allow an attacker to execute arbitrary code with the
privileges of a user running an untrusted applet or application that uses
Java2D. (CVE-2010-0847)

Note: The flaws concerning applets in this advisory, CVE-2010-0082,
CVE-2010-0084, CVE-2010-0085, CVE-2010-0088, CVE-2010-0091, CVE-2010-0092,
CVE-2010-0093, CVE-2010-0094, CVE-2010-0095, CVE-2010-0837, CVE-2010-0838,
CVE-2010-0840, CVE-2010-0847, and CVE-2010-0848, can only be triggered in
java-1.6.0-openjdk by calling the "appletviewer" application.

This update also provides three defense in depth patches. (BZ#575745,
BZ#575861, BZ#575789)

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.

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
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 533125 - CVE-2009-3555 TLS: MITM attacks via session renegotiation
• BZ - 575736 - CVE-2010-0082 OpenJDK Loader-constraint table allows arrays instead of only the base-classes (6626217)
• BZ - 575740 - CVE-2010-0084 OpenJDK Policy/PolicyFile leak dynamic ProtectionDomains. (6633872)
• BZ - 575747 - CVE-2010-0085 OpenJDK File TOCTOU deserialization vulnerability (6736390)
• BZ - 575755 - CVE-2010-0088 OpenJDK Inflater/Deflater clone issues (6745393)
• BZ - 575756 - CVE-2010-0091 OpenJDK Unsigned applet can retrieve the dragged information before drop action occurs(6887703)
• BZ - 575760 - CVE-2010-0092 OpenJDK AtomicReferenceArray causes SIGSEGV -> SEGV_MAPERR error (6888149)
• BZ - 575764 - CVE-2010-0093 OpenJDK System.arraycopy unable to reference elements beyond Integer.MAX_VALUE bytes (6892265)
• BZ - 575769 - CVE-2010-0094 OpenJDK Deserialization of RMIConnectionImpl objects should enforce stricter checks (6893947)
• BZ - 575772 - CVE-2010-0095 OpenJDK Subclasses of InetAddress may incorrectly interpret network addresses (6893954)
• BZ - 575775 - CVE-2010-0845 OpenJDK No ClassCastException for HashAttributeSet constructors if run with -Xcomp (6894807)
• BZ - 575808 - CVE-2010-0838 OpenJDK CMM readMabCurveData Buffer Overflow Vulnerability (6899653)
• BZ - 575818 - CVE-2010-0837 OpenJDK JAR "unpack200" must verify input parameters (6902299)
• BZ - 575846 - CVE-2010-0840 OpenJDK Applet Trusted Methods Chaining Privilege Escalation Vulnerability (6904691)
• BZ - 575865 - CVE-2010-0848 OpenJDK AWT Library Invalid Index Vulnerability (6914823)
• BZ - 575871 - CVE-2010-0847 OpenJDK ImagingLib arbitrary code execution vulnerability (6914866)

CVEs

• CVE-2009-3555
• CVE-2010-0093
• CVE-2010-0837
• CVE-2010-0088
• CVE-2010-0084
• CVE-2010-0085
• CVE-2010-0847
• CVE-2010-0838
• CVE-2010-0082
• CVE-2010-0092
• CVE-2010-0091
• CVE-2010-0845
• CVE-2010-0095
• CVE-2010-0094
• CVE-2010-0848
• CVE-2010-0840

References

• http://www.redhat.com/security/updates/classification/#important
• http://kbase.redhat.com/faq/docs/DOC-20491