- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200411-38 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Sun and Blackdown Java: Applet privilege escalation Date: November 29, 2004 Bugs: #72172, #72221 ID: 200411-38 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== The Java plug-in security in Sun and Blackdown Java environments can be bypassed to access arbitrary packages, allowing untrusted Java applets to perform unrestricted actions on the host system. Background ========== Sun and Blackdown both provide implementations of Java Development Kits (JDK) and Java Runtime Environments (JRE). All these implementations provide a Java plug-in that can be used to execute Java applets in a restricted environment for web browsers. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-java/sun-jdk < 1.4.2.06 >= 1.4.2.06 2 dev-java/sun-jre-bin < 1.4.2.06 >= 1.4.2.06 3 dev-java/blackdown-jdk < 1.4.2.01 >= 1.4.2.01 4 dev-java/blackdown-jre < 1.4.2.01 >= 1.4.2.01 ------------------------------------------------------------------- # Package 1 [dev-java/sun-jdk] only applies to x86 and AMD64 users. # Package 2 [dev-java/sun-jre-bin] only applies to x86 and AMD64 users. # Package 3 [dev-java/blackdown-jdk] only applies to x86 and AMD64 users. # Package 4 [dev-java/blackdown-jre] only applies to x86 and AMD64 users. ------------------------------------------------------------------- 4 affected packages; please see the notes above... ------------------------------------------------------------------- Description =========== All Java plug-ins are subject to a vulnerability allowing unrestricted Java package access. Impact ====== A remote attacker could embed a malicious Java applet in a web page and entice a victim to view it. This applet can then bypass security restrictions and execute any command or access any file with the rights of the user running the web browser. Workaround ========== As a workaround you could disable Java applets on your web browser. Resolution ========== All Sun JDK users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-java/sun-jdk-1.4.2.06" All Sun JRE users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-java/sun-jre-bin-1.4.2.06" All Blackdown JDK users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-java/blackdown-jdk-1.4.2.01" All Blackdown JRE users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-java/blackdown-jre-1.4.2.01" Note: You should unmerge all vulnerable versions to be fully protected. References ========== [ 1 ] iDEFENSE Security Advisory 11.22.04 http://www.idefense.com/application/poi/display?id=158&type=vulnerabilities [ 2 ] CAN-2004-1029 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1029 [ 3 ] Blackdown Security Advisory 2004-01 http://www.blackdown.org/java-linux/java2-status/security/Blackdown-SA-2004-01.txt Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200411-38.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@xxxxxxxxxx or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2004 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.0
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