Bug 1299385 (CVE-2016-0466)

Summary:	CVE-2016-0466 OpenJDK: insufficient enforcement of totalEntitySizeLimit (JAXP, 8133962)
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:	It was discovered that the JAXP component in OpenJDK did not properly enforce the totalEntitySizeLimit limit. An attacker able to make a Java application process a specially crafted XML file could use this flaw to make the application consume an excessive amount of memory.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-02 15:20:43 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:	1295699

Description Tomas Hoger 2016-01-18 09:16:52 UTC

It was discovered that the JAXP component of OpenJDK did not properly count total size of the expanded general entities and therefore did not properly enforce the totalEntitySizeLimit limit.  An attacker able to make a Java application parse a specially crafted XML file could use this flaw to make the application use and excessive amount of memory and possibly exit on out of memory condition.

JAXP XML parsing limits are described on the following page:

https://docs.oracle.com/javase/tutorial/jaxp/limits/limits.html

Comment 2 Tomas Hoger 2016-01-18 14:34:58 UTC

The use of general entities inside tag attribute values allows bypassing the limit.

Comment 3 Tomas Hoger 2016-01-19 21:52:41 UTC

Public now via Oracle Critical Patch Update - January 2016.  Fixed in Oracle Java SE 6u111, 7u95, and 8u71.

External References:

http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html#AppendixJAVA

Comment 4 Tomas Hoger 2016-01-20 14:06:58 UTC

OpenJDK 8 upstream commit:

http://hg.openjdk.java.net/jdk8u/jdk8u/jaxp/rev/6568ef042ca5

Comment 5 errata-xmlrpc 2016-01-20 19:15:38 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:0050 https://rhn.redhat.com/errata/RHSA-2016-0050.html

Comment 6 errata-xmlrpc 2016-01-20 19:34:11 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:0049 https://rhn.redhat.com/errata/RHSA-2016-0049.html

Comment 7 errata-xmlrpc 2016-01-21 11:23:31 UTC

This issue has been addressed in the following products:

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

Via RHSA-2016:0057 https://rhn.redhat.com/errata/RHSA-2016-0057.html

Comment 8 errata-xmlrpc 2016-01-21 11:40:05 UTC

This issue has been addressed in the following products:

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

Via RHSA-2016:0056 https://rhn.redhat.com/errata/RHSA-2016-0056.html

Comment 9 errata-xmlrpc 2016-01-21 11:41:29 UTC

This issue has been addressed in the following products:

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

Via RHSA-2016:0055 https://rhn.redhat.com/errata/RHSA-2016-0055.html

Comment 10 errata-xmlrpc 2016-01-21 11:43:12 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:0053 https://rhn.redhat.com/errata/RHSA-2016-0053.html

Comment 11 errata-xmlrpc 2016-01-21 11:59:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 5

Via RHSA-2016:0054 https://rhn.redhat.com/errata/RHSA-2016-0054.html

Comment 12 errata-xmlrpc 2016-01-26 13:12:40 UTC

This issue has been addressed in the following products:

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

Via RHSA-2016:0067 https://rhn.redhat.com/errata/RHSA-2016-0067.html

Comment 13 errata-xmlrpc 2016-02-02 10:05:55 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-2016:0101 https://rhn.redhat.com/errata/RHSA-2016-0101.html

Comment 14 errata-xmlrpc 2016-02-02 10:07:27 UTC

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 5

Via RHSA-2016:0100 https://rhn.redhat.com/errata/RHSA-2016-0100.html

Comment 15 errata-xmlrpc 2016-02-02 13:40:11 UTC

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 7

Via RHSA-2016:0098 https://rhn.redhat.com/errata/RHSA-2016-0098.html

Comment 16 errata-xmlrpc 2016-02-02 13:54:07 UTC

This issue has been addressed in the following products:

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

Via RHSA-2016:0099 https://rhn.redhat.com/errata/RHSA-2016-0099.html

Comment 18 errata-xmlrpc 2016-07-18 13:56:46 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