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Bug 1335928 - Disable CA certificates with 1024-bit or less parameters by default
Summary: Disable CA certificates with 1024-bit or less parameters by default
Keywords:
Status: CLOSED CANTFIX
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: ca-certificates
Version: 6.9
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Kai Engert (:kaie) (inactive account)
QA Contact: Stanislav Zidek
URL:
Whiteboard:
Depends On: 1386679 1386680 1386683
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-05-13 14:36 UTC by Nikos Mavrogiannopoulos
Modified: 2018-04-06 10:14 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-08-31 13:25:24 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1335930 0 unspecified CLOSED Disable CA certificates with 1024-bit or less parameters 2021-02-22 00:41:40 UTC
Red Hat Bugzilla 1367573 0 unspecified CLOSED Remove several legacy CAs, as of upstream update 2.10 2021-02-22 00:41:40 UTC

Internal Links: 1335930 1367573

Description Nikos Mavrogiannopoulos 2016-05-13 14:36:59 UTC
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 any CA certificates which utilize less than 1024-bit RSA parameters.

Comment 11 Kai Engert (:kaie) (inactive account) 2016-10-19 12:40:04 UTC
This is blocked by the bugs on the dependency list.

Comment 12 Kai Engert (:kaie) (inactive account) 2016-10-24 12:57:52 UTC
These 1024-bit CAs are still referenced by a significant percentage of sites in the public web, which include (optional) intermediate CAs in the chains sent out by the servers, which point to the legacy CAs.

Removing these CAs, or in other words, no longer trusting them, would have the consequence that applications, which are based on OpenSSL, GnuTLS and glib-networking (and possibly others), could no longer verify certificates from the affected servers, and as a result, would refuse to connect to them by default.

In order to avoid this regression, I've been asked to not perform this removal at this time.

Comment 17 Kai Engert (:kaie) (inactive account) 2017-08-31 13:25:24 UTC
Two dependency bugs have been marked as wontfix.
I'm afraid this means this one cannot be fixed either.


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