Bug 1335943 – Disable/remove export ciphersuites in NSS

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Bug 1335943 - Disable/remove export ciphersuites in NSS

Summary:	Disable/remove export ciphersuites in NSS

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	nss (Show other bugs)
Sub Component:
Version:	7.4
Hardware:	Unspecified Unspecified

Priority	unspecified Severity unspecified
Target Milestone:	rc
Target Release:	---
Assigned To:	Daiki Ueno
QA Contact:	Hubert Kario
Docs Contact:	Mirek Jahoda

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	1377248 1335929
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Reported:	2016-05-13 11:10 EDT by Nikos Mavrogiannopoulos
Modified:	2017-08-01 12:47 EDT (History)
CC List:	5 users (show)

See Also:
Fixed In Version:	nss-3.28.3-4.el7
Doc Type:	Deprecated Functionality
Doc Text:	The EXPORT cipher suites in NSS are deprecated This change removes support for the EXPORT cipher suites in the Network Security Services (NSS) library. Disabling the weak cipher suites prevents attacks such as the FREAK attack. The EXPORT cipher suites are not required in any TLS protocol configuration.
Story Points:	---
Clone Of:
Clones:	1335944 (view as bug list)
Environment:
Last Closed:	2017-08-01 12:47:42 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHEA-2017:1977	normal	SHIPPED_LIVE	nss bug fix and enhancement update	2017-08-01 13:57:47 EDT

Groups: None (edit)

Description Nikos Mavrogiannopoulos 2016-05-13 11:10:41 EDT

RHEL includes several cryptographic components who's security doesn't remain constant over time. Algorithms such as (cryptographic) hashing and encryption typically have a lifetime after which they are considered either too risky to use or plain insecure. That would mean we need to phase out such algorithms from the default settings, or completely disable if they could cause irreparable issue. 

This bug is about disabling by default and removing the ability to negotiate the marked as EXPORT ciphersuites. It should not be possible by applications to inadvertently enable them.

Comment 1 Bob Relyea 2016-05-16 20:24:37 EDT

I think they are already disabled in RHEL-7, but it doesn't hurt to verify that.

bob

Comment 5 errata-xmlrpc 2017-08-01 12:47:42 EDT

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, 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/RHEA-2017:1977

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