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Subject: US-CERT Technical Cyber Security Alert TA07-022A
From: CERT Advisory <This email address is being protected from spambots. You need JavaScript enabled to view it.>
Date: Mon, 22 Jan 2007 14:35:16 -0500
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National Cyber Alert System
Technical Cyber Security Alert TA07-022A
Sun Updates for Multiple Vulnerabilities in Java
Original release date: January 22, 2007
Last revised: --
Source: US-CERT
Systems Affected
Sun Java Runtime Environment versions
* JDK and JRE 5.0 Update 9 and earlier
* SDK and JRE 1.4.2_12 and earlier
* SDK and JRE 1.3.1_18 and earlier
Overview
The Sun Java Runtime Environment contains multiple vulnerabilities
that can allow a remote, unauthenticated attacker to execute arbitrary
code on a vulnerable system.
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. Further details about these vulnerabilities are
available in the Vulnerability Notes Database.
Note that exploit code is publicly available for at least one of these
vulnerabilities.
II. Impact
By convincing a user to run a specially crafted Java application, a
remote, unauthenticated attacker can execute arbitrary code on a
vulnerable system. A common attack vector would be a web page that
contains a Java applet.
III. Solution
Apply an update from Sun
These issues are addressed in the following versions of the Sun Java
Runtime environment:
* JDK and JRE 5.0 Update 10 or later
* SDK and JRE 1.4.2_13 or later
* SDK and JRE 1.3.1_19 or later
If you install the latest version of Java, older versions of Java may
remain installed on your computer. If these versions of Java are not
needed, you may wish to remove them. For instructions on how to remove
older versions of Java, refer to the following instructions from Sun:
http://www.java.com/en/download/faq/5000070400.xml
Disable Java
Disable Java in your web browser, as specified in the Securing Your
Web Browser document. While this does not fix the underlying
vulnerabilities, it does block the most common attack vector.
IV. References
* US-CERT Vulnerability Note VU#388289 -
<http://www.kb.cert.org/vuls/id/388289>
* US-CERT Vulnerability Note VU#102289 -
<http://www.kb.cert.org/vuls/id/102289>
* US-CERT Vulnerability Note VU#149457 -
<http://www.kb.cert.org/vuls/id/149457>
* US-CERT Vulnerability Note VU#939609 -
<http://www.kb.cert.org/vuls/id/939609>
* Securing Your Web Browser -
<http://www.us-cert.gov/reading_room/securing_browser/>
* CVE-2007-0243 -
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0243>
* CVE-2006-6745 -
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6745>
* CVE-2006-6731 -
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6731>
* 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>
____________________________________________________________________
The most recent version of this document can be found at:
<http://www.us-cert.gov/cas/techalerts/TA07-022A.html>
____________________________________________________________________
Feedback can be directed to US-CERT Technical Staff. Please send
email to <This email address is being protected from spambots. You need JavaScript enabled to view it.> with "TA07-022A Feedback VU#388289" in the
subject.
____________________________________________________________________
For instructions on subscribing to or unsubscribing from this
mailing list, visit <http://www.us-cert.gov/cas/signup.html>.
____________________________________________________________________
Produced 2007 by US-CERT, a government organization.
Terms of use:
<http://www.us-cert.gov/legal.html>
____________________________________________________________________
Revision History
January 22, 2007: Initial release
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