Bug 1502038 (CVE-2017-10388) - CVE-2017-10388 OpenJDK: use of unprotected sname in Kerberos client (Libraries, 8178794)
Summary: CVE-2017-10388 OpenJDK: use of unprotected sname in Kerberos client (Librarie...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-10388
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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Whiteboard:
Depends On: Engineering1499213 Engineering1499214 Engineering1499215 Engineering1499216 Engineering1499223 Engineering1499224 Engineering1499225 Engineering1499226 Engineering1503325 Engineering1503326 Engineering1503327 Engineering1503328 Engineering1503329 Engineering1503330 Engineering1503331 Engineering1503332 Engineering1503333 Engineering1503334 Engineering1503335 Engineering1503336 Engineering1515469 Engineering1515470 Engineering1515471 Engineering1515472 Engineering1516384 Engineering1516385 Engineering1516386 Engineering1516387
Blocks: Embargoed1499210
TreeView+ depends on / blocked
 
Reported: 2017-10-13 19:23 UTC by Tomas Hoger
Modified: 2021-03-11 16:00 UTC (History)
3 users (show)

Fixed In Version:
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It was discovered that the Kerberos client implementation in the Libraries component of OpenJDK used the sname field from the plain text part rather than encrypted part of the KDC reply message. A man-in-the-middle attacker could possibly use this flaw to impersonate Kerberos services to Java applications acting as Kerberos clients.
Clone Of:
Environment:
Last Closed: 2017-12-06 14:16:03 UTC

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2998 0 normal SHIPPED_LIVE Critical: java-1.8.0-openjdk security update 2017-10-20 15:31:56 UTC
Red Hat Product Errata RHSA-2017:2999 0 normal SHIPPED_LIVE Critical: java-1.8.0-oracle security update 2017-12-14 20:18:50 UTC
Red Hat Product Errata RHSA-2017:3046 0 normal SHIPPED_LIVE Important: java-1.7.0-oracle security update 2017-12-14 20:24:06 UTC
Red Hat Product Errata RHSA-2017:3047 0 normal SHIPPED_LIVE Important: java-1.6.0-sun security update 2017-12-14 20:18:13 UTC
Red Hat Product Errata RHSA-2017:3264 0 normal SHIPPED_LIVE Critical: java-1.8.0-ibm security update 2017-11-27 23:04:39 UTC
Red Hat Product Errata RHSA-2017:3267 0 normal SHIPPED_LIVE Critical: java-1.8.0-ibm security update 2017-11-29 01:40:15 UTC
Red Hat Product Errata RHSA-2017:3268 0 normal SHIPPED_LIVE Critical: java-1.7.1-ibm security update 2017-11-29 01:43:15 UTC
Red Hat Product Errata RHSA-2017:3392 0 normal SHIPPED_LIVE Important: java-1.7.0-openjdk security and bug fix update 2017-12-06 18:42:07 UTC
Red Hat Product Errata RHSA-2017:3453 0 normal SHIPPED_LIVE Important: java-1.8.0-ibm security update 2017-12-13 21:48:15 UTC

Description Tomas Hoger 2017-10-13 19:23:20 UTC 
It was discovered that the Kerberos client implementation in the Libraries component of OpenJDK used the sname field from the plain text part rather than encrypted part of the KDC reply.  A man-in-the-middle attacker could possibly use this flaw to impersonate Kerberos services to Java applications acting as Kerberos clients.
Comment 1 Tomas Hoger 2017-10-13 19:26:28 UTC 
Apparently another Kerberos implementation affected by the "Orpheus' Lyre" vulnerability:

https://www.orpheus-lyre.info/
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495
Comment 3 Tomas Hoger 2017-10-17 20:47:10 UTC 
Public now via Oracle CPU October 2017:

http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html#AppendixJAVA

The issue was fixed in Oracle JDK 9.0.1, 8u151, 7u161, and 6u171.
Comment 7 Tomas Hoger 2017-10-18 09:42:39 UTC 
OpenJDK-8 upstream commit:

http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/6805783b9875
Comment 8 errata-xmlrpc 2017-10-20 11:33:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2998 https://access.redhat.com/errata/RHSA-2017:2998
Comment 9 Tomas Hoger 2017-10-22 11:56:54 UTC 
(In reply to Tomas Hoger from comment #1)
> Apparently another Kerberos implementation affected by the "Orpheus' Lyre"
> vulnerability:
> 
> https://www.orpheus-lyre.info/

The above page for the "Orpheus' Lyre" vulnerability was update to list this CVE and reference Oracle Oct 2017 CPU page.
Comment 10 errata-xmlrpc 2017-10-23 07:49:05 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 7

Via RHSA-2017:2999 https://access.redhat.com/errata/RHSA-2017:2999
Comment 11 errata-xmlrpc 2017-10-24 12:13:16 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-2017:3047 https://access.redhat.com/errata/RHSA-2017:3047
Comment 12 errata-xmlrpc 2017-10-24 12:18:58 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-2017:3046 https://access.redhat.com/errata/RHSA-2017:3046
Comment 15 errata-xmlrpc 2017-11-27 18:05:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Supplementary

Via RHSA-2017:3264 https://access.redhat.com/errata/RHSA-2017:3264
Comment 16 errata-xmlrpc 2017-11-28 20:41:12 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6 Supplementary

Via RHSA-2017:3267 https://access.redhat.com/errata/RHSA-2017:3267
Comment 17 errata-xmlrpc 2017-11-28 20:44:00 UTC 
This issue has been addressed in the following products:

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

Via RHSA-2017:3268 https://access.redhat.com/errata/RHSA-2017:3268
Comment 18 errata-xmlrpc 2017-12-06 13:43:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:3392 https://access.redhat.com/errata/RHSA-2017:3392
Comment 19 errata-xmlrpc 2017-12-13 16:54:46 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 5.8
  Red Hat Satellite 5.8 ELS

Via RHSA-2017:3453 https://access.redhat.com/errata/RHSA-2017:3453
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