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Bug 2188046 - Support requiring EMS in TLS 1.2, default to it when in FIPS mode [rhel-9.2.0.z]
Summary: Support requiring EMS in TLS 1.2, default to it when in FIPS mode [rhel-9.2.0.z]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: openssl
Version: 9.0
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Dmitry Belyavskiy
QA Contact: Hubert Kario
Filip Hanzelka
URL:
Whiteboard:
Depends On: 2157951
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-04-19 15:09 UTC by RHEL Program Management Team
Modified: 2023-07-13 09:40 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
.The `Extended Master Secret` TLS Extension is now enforced on FIPS-enabled systems With the release of the link:https://access.redhat.com/errata/RHSA-2023:3722[RHSA-2023:3722] advisory, the TLS `Extended Master Secret` (EMS) extension (RFC 7627) is mandatory for TLS 1.2 connections on FIPS-enabled RHEL 9 systems. This is in accordance with FIPS-140-3 requirements. TLS 1.3 is not affected. Legacy clients that do not support EMS or TLS 1.3 now cannot connect to FIPS servers running on RHEL 9. Similarly, RHEL 9 clients in FIPS mode cannot connect to servers that only support TLS 1.2 without EMS. This in practice means that these clients cannot connect to servers on RHEL 6, RHEL 7 and non-RHEL legacy operating systems. This is because the legacy 1.0.x versions of OpenSSL do not support EMS or TLS 1.3. In addition, connecting from a FIPS-enabled RHEL client to a hypervisor such as VMWare ESX now fails with a `Provider routines::ems not enabled` error if the hypervisor uses TLS 1.2 without EMS. To work around this problem, update the hypervisor to support TLS 1.3 or TLS 1.2 with the EMS extension. For VMWare vSphere, this means version 8.0 or later. For more information, see link:https://access.redhat.com/solutions/7018256[TLS Extension "Extended Master Secret" enforced with Red Hat Enterprise Linux 9.2].
Clone Of: 2157951
Environment:
Last Closed: 2023-06-21 14:39:51 UTC
Type: ---
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker CRYPTO-10363 0 None None None 2023-04-19 15:10:09 UTC
Red Hat Issue Tracker RHELPLAN-155221 0 None None None 2023-04-19 15:10:20 UTC
Red Hat Product Errata RHSA-2023:3722 0 None None None 2023-06-21 14:40:38 UTC

Comment 12 errata-xmlrpc 2023-06-21 14:39:51 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: openssl security and bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2023:3722
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