Bug 1273496 (CVE-2015-4903)

Summary:	CVE-2015-4903 OpenJDK: insufficient proxy class checks in RemoteObjectInvocationHandler (RMI, 8076339)
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dbhole, jvanek, sbaiduzh, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-11-26 15:27:29 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1257667

Description Tomas Hoger 2015-10-20 14:50:24 UTC

It was discovered that the RemoteObjectInvocationHandler class in the RMI component of OpenJDK did not check if object proxy is an instance of a proxy class and that it uses correct invocation handler.  An untrusted Java application or applet could use this flaw to bypass certain Java sandbox restrictions by gaining access to data that should by protected by the sandbox.

Comment 1 Tomas Hoger 2015-10-21 08:55:02 UTC

Public now via Oracle Critical Patch Update - October 2015.  Fixed in Oracle Java SE 6u105, 7u91, and 8u65.

External References:

http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html#AppendixJAVA

Comment 2 errata-xmlrpc 2015-10-21 18:48:46 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5

Via RHSA-2015:1921 https://rhn.redhat.com/errata/RHSA-2015-1921.html

Comment 3 errata-xmlrpc 2015-10-21 21:00:01 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2015:1920 https://rhn.redhat.com/errata/RHSA-2015-1920.html

Comment 4 errata-xmlrpc 2015-10-21 21:09:44 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2015:1919 https://rhn.redhat.com/errata/RHSA-2015-1919.html

Comment 5 errata-xmlrpc 2015-10-22 18:35:53 UTC

This issue has been addressed in the following products:

  Oracle Java for Red Hat Enterprise Linux 7
  Oracle Java for Red Hat Enterprise Linux 5
  Oracle Java for Red Hat Enterprise Linux 6

Via RHSA-2015:1928 https://rhn.redhat.com/errata/RHSA-2015-1928.html

Comment 6 errata-xmlrpc 2015-10-22 18:36:57 UTC

This issue has been addressed in the following products:

  Oracle Java for Red Hat Enterprise Linux 7
  Oracle Java for Red Hat Enterprise Linux 6

Via RHSA-2015:1926 https://rhn.redhat.com/errata/RHSA-2015-1926.html

Comment 7 errata-xmlrpc 2015-10-22 18:46:34 UTC

This issue has been addressed in the following products:

  Oracle Java for Red Hat Enterprise Linux 7
  Oracle Java for Red Hat Enterprise Linux 5
  Oracle Java for Red Hat Enterprise Linux 6

Via RHSA-2015:1927 https://rhn.redhat.com/errata/RHSA-2015-1927.html

Comment 8 Tomas Hoger 2015-10-26 14:35:34 UTC

OpenJDK8 upstream commit:

http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/cf0cf52d0c6c

Comment 9 errata-xmlrpc 2015-11-18 16:41:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2015:2086 https://rhn.redhat.com/errata/RHSA-2015-2086.html

Comment 10 errata-xmlrpc 2015-11-23 12:42:03 UTC

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 6
  Supplementary for Red Hat Enterprise Linux 5

Via RHSA-2015:2508 https://rhn.redhat.com/errata/RHSA-2015-2508.html

Comment 11 errata-xmlrpc 2015-11-23 12:43:59 UTC

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 5

Via RHSA-2015:2507 https://rhn.redhat.com/errata/RHSA-2015-2507.html

Comment 12 errata-xmlrpc 2015-11-23 12:57:50 UTC

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 7

Via RHSA-2015:2509 https://rhn.redhat.com/errata/RHSA-2015-2509.html

Comment 13 errata-xmlrpc 2015-11-23 12:59:43 UTC

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 6
  Supplementary for Red Hat Enterprise Linux 7

Via RHSA-2015:2506 https://rhn.redhat.com/errata/RHSA-2015-2506.html

Comment 14 errata-xmlrpc 2015-11-25 21:17:11 UTC

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 5
  Supplementary for Red Hat Enterprise Linux 6

Via RHSA-2015:2518 https://rhn.redhat.com/errata/RHSA-2015-2518.html

Comment 15 errata-xmlrpc 2016-07-18 13:54:38 UTC

This issue has been addressed in the following products:

  Red Hat Satellite 5.6
  Red Hat Satellite 5.7

Via RHSA-2016:1430 https://access.redhat.com/errata/RHSA-2016:1430