Bug 1413911 (CVE-2016-5546)

Summary: CVE-2016-5546 OpenJDK: incorrect ECDSA signature extraction from the DER input (Libraries, 8168714)
Product: [Other] Security Response Reporter: Tomas Hoger <thoger>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dbhole, jvanek, sardella, security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=moderate,public=20170117,reported=20170115,source=oracle,cvss3=7.5/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N,cwe=CWE-20,rhel-5/java-1.7.0-openjdk=affected,rhel-6/java-1.7.0-openjdk=affected,rhel-7/java-1.7.0-openjdk=affected,rhel-6/java-1.8.0-openjdk=affected,rhel-7/java-1.8.0-openjdk=affected,rhel-5/java-1.6.0-sun=affected,rhel-6/java-1.6.0-sun=affected,rhel-7/java-1.6.0-sun=affected,rhel-5/java-1.7.0-oracle=affected,rhel-6/java-1.7.0-oracle=affected,rhel-7/java-1.7.0-oracle=affected,rhel-6/java-1.8.0-oracle=affected,rhel-7/java-1.8.0-oracle=affected,rhel-5/java-1.6.0-ibm=affected,rhel-6/java-1.6.0-ibm=affected,rhel-5/java-1.7.0-ibm=affected,rhel-6/java-1.7.1-ibm=affected,rhel-7/java-1.7.1-ibm=affected,rhel-6/java-1.8.0-ibm=affected,rhel-7/java-1.8.0-ibm=affected
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
It was discovered that the Libraries component of OpenJDK accepted ECDSA signatures using non-canonical DER encoding. This could cause a Java application to accept signature in an incorrect format not accepted by other cryptographic tools.
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-02-28 09:26:31 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On:    
Bug Blocks: 1410614    

Description Tomas Hoger 2017-01-17 10:11:09 UTC
It was discovered that the ECDSASignature class in the Libraries component of OpenJDK accepted signatures using non-canonical DER encoding.  This could cause a Java application to accept signature in an incorrect format not accepted by other cryptographic tools.

Comment 1 Tomas Hoger 2017-01-17 21:25:27 UTC
Related entry in the Oracle JDK release notes:

http://www.oracle.com/technetwork/java/javase/8u121-relnotes-3315208.html
http://www.oracle.com/technetwork/java/javaseproducts/documentation/javase7supportreleasenotes-1601161.html#R170_131
http://www.oracle.com/technetwork/java/javase/documentation/overview-156328.html#R160_141

  security-libs
  More checks added to DER encoding parsing code

  More checks are added to the DER encoding parsing code to catch various
  encoding errors. In addition, signatures which contain constructed
  indefinite length encoding will now lead to IOException during parsing.
  Note that signatures generated using JDK default providers are not affected
  by this change. 
  JDK-8168714 (not public)

Comment 2 Tomas Hoger 2017-01-17 21:42:59 UTC
Public now via Oracle CPU January 2017:

http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixJAVA

The issue was fixed in Oracle JDK 8u121, 7u131, and 6u141.

Comment 3 Tomas Hoger 2017-01-18 20:47:05 UTC
OpenJDK 8 upstream commit:

http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/31dae74ad077

Comment 4 errata-xmlrpc 2017-01-19 14:01:06 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
  Oracle Java for Red Hat Enterprise Linux 5

Via RHSA-2017:0176 https://rhn.redhat.com/errata/RHSA-2017-0176.html

Comment 5 errata-xmlrpc 2017-01-19 14:03:08 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-2017:0175 https://rhn.redhat.com/errata/RHSA-2017-0175.html

Comment 6 errata-xmlrpc 2017-01-19 14:10:35 UTC
This issue has been addressed in the following products:

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

Via RHSA-2017:0177 https://rhn.redhat.com/errata/RHSA-2017-0177.html

Comment 7 errata-xmlrpc 2017-01-20 11:06:34 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:0180 https://rhn.redhat.com/errata/RHSA-2017-0180.html

Comment 8 errata-xmlrpc 2017-02-09 12:06:53 UTC
This issue has been addressed in the following products:

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

Via RHSA-2017:0263 https://rhn.redhat.com/errata/RHSA-2017-0263.html

Comment 9 errata-xmlrpc 2017-02-13 11:19:41 UTC
This issue has been addressed in the following products:

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

Via RHSA-2017:0269 https://rhn.redhat.com/errata/RHSA-2017-0269.html

Comment 10 errata-xmlrpc 2017-02-28 08:21:13 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5 Supplementary

Via RHSA-2017:0337 https://rhn.redhat.com/errata/RHSA-2017-0337.html

Comment 11 errata-xmlrpc 2017-02-28 08:23:16 UTC
This issue has been addressed in the following products:

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

Via RHSA-2017:0336 https://rhn.redhat.com/errata/RHSA-2017-0336.html

Comment 12 errata-xmlrpc 2017-02-28 08:30:46 UTC
This issue has been addressed in the following products:

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

Via RHSA-2017:0338 https://rhn.redhat.com/errata/RHSA-2017-0338.html

Comment 13 errata-xmlrpc 2017-05-09 16:43:24 UTC
This issue has been addressed in the following products:

  Red Hat Satellite 5.6
  Red Hat Satellite 5.7

Via RHSA-2017:1216 https://access.redhat.com/errata/RHSA-2017:1216