-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 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 - * Sun Alert 244987 - * Sun Alert 244988 - * Sun Alert 244989 - * Sun Alert 244990 - * Sun Alert 244991 - * Sun Alert 245246 - * Sun Alert 246266 - * Sun Alert 246286 - * Sun Alert 246346 - * Sun Alert 246366 - * Sun Alert 246386 - * Sun Alert 246387 - * Java SE Technologies at a Glance - * Java SE Security - * Can I remove older versions of the JRE after installing a newer version? - * Securing Your Web Browser - ____________________________________________________________________ The most recent version of this document can be found at: ____________________________________________________________________ Feedback can be directed to US-CERT Technical Staff. Please send email to with "TA08-340A Feedback VU#544435" in the subject. ____________________________________________________________________ For instructions on subscribing to or unsubscribing from this mailing list, visit . ____________________________________________________________________ Produced 2008 by US-CERT, a government organization. Terms of use: ____________________________________________________________________ Revision History December 05, 2008: Initial release -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iQEVAwUBSTmWjXIHljM+H4irAQLfMAgAloMlpeNv+WLW09EaIhzZ/VlEXwJnhB09 ResaptUSMPL+gEZF91XqfO+l6e0GEdWn9jhmU5uyxGLdqBfHc292LAOq2Ip2xbfE IRFDAai//TCRNKI49i9zJhFAhTfuUnWqRtxo56i6vgIvfEtL9Vh/lfQQakI2bZra jMI7J28pz6RLhVWnYhn45ktRqCod7Nr4JpDCGcTX/GqpDn1IcMwUUqmobaK+Zat8 PTBxVczoMOc9npL5ytXktw6xjVDcnc1BPzMWIzutKUdCMxDc5kNqUr00hPT2LOlb vWxWKiMl2Ziy26SzCuwblV5ThY7nzbGixG9GFuEQef3OBmDVRzYERw== =XmO2 -----END PGP SIGNATURE-----