Bug 1823879 (CVE-2020-2778)

Summary:	CVE-2020-2778 OpenJDK: Incomplete enforcement of algorithm restrictions for TLS (JSSE, 8232424)
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:	ahughes, dbhole, jvanek, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-04-21 16:32:55 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:	1810784, 1810785, 1810786, 1810787, 1810788, 1826104
Bug Blocks:	1810559

Description Tomas Hoger 2020-04-14 17:34:49 UTC

A flaw was found in the TLS implementation in the JSSE component of OpenJDK.  Setting algorithm constraints on SSLParameters using the setAlgorithmConstraints() method could override the systems security policy defined using the jdk.tls.disabledAlgorithms security property and lead to the use of weak algorithms that were intended to be disabled.

Comment 1 Tomas Hoger 2020-04-14 22:24:23 UTC

Public now via Oracle CPU April 2020:

https://www.oracle.com/security-alerts/cpuapr2020.html#AppendixJAVA

Fixed in Oracle Java SE 14.0.1 and 11.0.7.

Comment 2 errata-xmlrpc 2020-04-21 11:17:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:1509 https://access.redhat.com/errata/RHSA-2020:1509

Comment 3 errata-xmlrpc 2020-04-21 16:32:00 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:1514 https://access.redhat.com/errata/RHSA-2020:1514

Comment 4 Product Security DevOps Team 2020-04-21 16:32:55 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-2778

Comment 5 errata-xmlrpc 2020-04-22 09:15:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

Via RHSA-2020:1517 https://access.redhat.com/errata/RHSA-2020:1517

Comment 6 Tomas Hoger 2020-05-14 08:25:44 UTC

OpenJDK-11 upstream commit:
http://hg.openjdk.java.net/jdk-updates/jdk11u/rev/36975c9e57a3