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US-CERT Technical Cyber Security Alert TA08-340A -- Sun Java Updates for Multiple Vulnerabilities



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                    National Cyber Alert System

              Technical Cyber Security Alert TA08-340A


Sun Java Updates for Multiple Vulnerabilities

   Original release date: December 05, 2008
   Last revised: --
   Source: US-CERT


Systems Affected

     Sun Java Runtime Environment versions
     
     * JDK and JRE 6 Update 10 and earlier
     * JDK and JRE 5.0 Update 16 and earlier
     * SDK and JRE 1.4.2_18 and earlier
     * SDK and JRE 1.3.1_23 and earlier


Overview

   Sun has released alerts to address multiple vulnerabilities
   affecting the Sun Java Runtime Environment. The most severe of
   these vulnerabilities could allow a remote attacker to execute
   arbitrary code.


I. Description

   The Sun Java Runtime Environment (JRE) allows users to run Java
   applications in a browser or as standalone programs. Sun has
   released updates to the Java Runtime Environment software to
   address multiple vulnerabilities.
   
   Sun released the following alerts to address these issues:
   
   * 244986 :  The Java Runtime Environment Creates Temporary Files
   That Have "Guessable" File Names

   * 244987 :  Java Runtime Environment (JRE) Buffer Overflow
   Vulnerabilities in Processing Image Files and Fonts May Allow
   Applets or Java Web Start Applications to Elevate Their Privileges

   * 244988 :  Multiple Security Vulnerabilities in Java Web Start
   and Java Plug-in May Allow Privilege Escalation

   * 244989 :  The Java Runtime Environment (JRE) "Java Update"
   Mechanism Does Not Check the Digital Signature of the JRE that it
   Downloads

   * 244990 :  A Buffer Overflow Vulnerability in the Java Runtime
   Environment (JRE) May Allow Privileges to be Escalated

   * 244991 :  A Security Vulnerability in the Java Runtime
   Environment (JRE) Related to Deserializing Calendar Objects May
   Allow Privileges to be Escalated

   * 245246 :  The Java Runtime Environment UTF-8 Decoder May Allow
   Multiple Representations of UTF-8 Input

   * 246266 :  Security Vulnerability in Java Runtime Environment May
   Allow Applets to List the Contents of the Current User's Home
   Directory

   * 246286 :  Security Vulnerability in the Java Runtime Environment
   With Processing RSA Public Keys

   * 246346 :  A Security Vulnerability in Java Runtime Environment
   (JRE) With Authenticating Users Through Kerberos May Lead to a
   Denial of Service (DoS)

   * 246366 :  Security Vulnerabilities in the Java Runtime
   Environment (JRE) JAX-WS and JAXB Packages may Allow Privileges to
   be Escalated

   * 246386 :  A Security Vulnerability in Java Runtime Environment
   (JRE) With Parsing of Zip Files May Allow Reading of Arbitrary
   Memory Locations

   * 246387 :  A Security Vulnerability in the Java Runtime
   Environment may Allow Code Loaded From the Local Filesystem to
   Access LocalHost


II. Impact

   The impacts of these vulnerabilities vary. The most severe of these
   vulnerabilities allows a remote attacker to execute arbitrary code.


III. Solution

   Apply an update from Sun
   
   These issues are addressed in the following versions of the Sun
   Java Runtime Environment:
   
   * JDK and JRE 6 Update 11
   * JDK and JRE 5.0 Update 17
   * SDK and JRE 1.4.2_19
   * SDK and JRE 1.3.1_24
   
   If you install the latest version of Java, older versions may
   remain installed on your computer. If you do not need these older
   versions, you can remove them by following Sun's instructions.
   
   Disable Java
   
   Disable Java in your web browser, as described in the Securing Your
   Web Browser document.  While this does not fix the underlying
   vulnerabilities, it does block a common attack vector.


IV. References

 * Sun Alert 244986 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-244986-1>

 * Sun Alert 244987 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-244987-1>

 * Sun Alert 244988 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-244988-1>

 * Sun Alert 244989 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-244989-1>

 * Sun Alert 244990 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-244990-1>

 * Sun Alert 244991 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-244991-1>

 * Sun Alert 245246 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-245246-1>

 * Sun Alert 246266 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-246266-1>

 * Sun Alert 246286 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-246286-1>

 * Sun Alert 246346 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-246346-1>

 * Sun Alert 246366 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-246366-1>

 * Sun Alert 246386 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-246386-1>

 * Sun Alert 246387 -
   <http://sunsolve.sun.com/search/document.do?assetkey=1-66-246387-1>

 * Java SE Technologies at a Glance -
   <http://java.sun.com/javase/technologies/>

 * Java SE Security -
   <http://java.sun.com/javase/technologies/security/index.jsp>

 * Can I remove older versions of the JRE after installing a newer
   version? -
   <http://www.java.com/en/download/faq/5000070400.xml>

 * Securing Your Web Browser -
   <http://www.us-cert.gov/reading_room/securing_browser/>

 ____________________________________________________________________

   The most recent version of this document can be found at:

     <http://www.us-cert.gov/cas/techalerts/TA08-340A.html>
 ____________________________________________________________________

   Feedback can be directed to US-CERT Technical Staff. Please send
   email to <cert@xxxxxxxx> with "TA08-340A Feedback VU#544435" in
   the subject.
 ____________________________________________________________________

   For instructions on subscribing to or unsubscribing from this
   mailing list, visit <http://www.us-cert.gov/cas/signup.html>.
 ____________________________________________________________________

   Produced 2008 by US-CERT, a government organization.

   Terms of use:

     <http://www.us-cert.gov/legal.html>
 ____________________________________________________________________

Revision History
  
  December 05, 2008: Initial release


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