Bug 1823947 (CVE-2020-2767) - CVE-2020-2767 OpenJDK: Incorrect handling of Certificate messages during TLS handshake (JSSE, 8232581)
Summary: CVE-2020-2767 OpenJDK: Incorrect handling of Certificate messages during TLS ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-2767
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1810784 1810785 1810786 1810787 1810788 1826104
Blocks: 1810559
TreeView+ depends on / blocked
 
Reported: 2020-04-14 20:22 UTC by Tomas Hoger
Modified: 2020-05-25 16:20 UTC (History)
4 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2020-04-21 16:32:58 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:1534 0 None None None 2020-04-22 01:02:18 UTC
Red Hat Product Errata RHBA-2020:1535 0 None None None 2020-04-22 08:58:11 UTC
Red Hat Product Errata RHBA-2020:1958 0 None None None 2020-04-29 01:12:47 UTC
Red Hat Product Errata RHBA-2020:1997 0 None None None 2020-04-30 15:04:42 UTC
Red Hat Product Errata RHBA-2020:2034 0 None None None 2020-05-06 08:47:20 UTC
Red Hat Product Errata RHBA-2020:2035 0 None None None 2020-05-06 08:50:58 UTC
Red Hat Product Errata RHBA-2020:2189 0 None None None 2020-05-18 14:45:39 UTC
Red Hat Product Errata RHBA-2020:2191 0 None None None 2020-05-18 14:48:00 UTC
Red Hat Product Errata RHBA-2020:2254 0 None None None 2020-05-25 16:20:48 UTC
Red Hat Product Errata RHSA-2020:1509 0 None None None 2020-04-21 11:17:32 UTC
Red Hat Product Errata RHSA-2020:1514 0 None None None 2020-04-21 16:32:02 UTC
Red Hat Product Errata RHSA-2020:1517 0 None None None 2020-04-22 09:15:07 UTC

Description Tomas Hoger 2020-04-14 20:22:40 UTC 
A flaw was found in the way the TLS implementation in the JSSE component of OpenJDK handled unexpected Certificate messages during the TLS handshake.  This could possibly allow an attacker to tamper with certificate verification performed during the handshake.
Comment 1 Tomas Hoger 2020-04-14 22:30:59 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 11:17:29 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 16:32:01 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 16:32:58 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-2020-2767
Comment 5 errata-xmlrpc 2020-04-22 09:15:06 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 08:26:07 UTC 
OpenJDK-11 upstream commit:
http://hg.openjdk.java.net/jdk-updates/jdk11u/rev/2b3ca2fc18a4
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