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Bug 1965445 - SHA-1 CAs are rejected even if they are explicitly trusted
Summary: SHA-1 CAs are rejected even if they are explicitly trusted
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: gnutls
Version: 8.5
Hardware: Unspecified
OS: Unspecified
medium
unspecified
Target Milestone: beta
: ---
Assignee: Daiki Ueno
QA Contact: Alexander Sosedkin
Mirek Jahoda
URL:
Whiteboard:
Depends On: 1956783
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-05-27 17:35 UTC by Alexander Sosedkin
Modified: 2024-12-20 20:08 UTC (History)
0 users

Fixed In Version: gnutls-3.6.16-3.el8
Doc Type: Bug Fix
Doc Text:
.`GnuTLS` no longer rejects SHA-1-signed CAs if they are explicitly trusted Previously, the `GnuTLS` library checked signature hash strength of all certificate authorities (CA) even if the CA was explicitly trusted. As a consequence, chains containing CAs signed with the SHA-1 algorithm were rejected with the error message `certificate's signature hash strength is unacceptable`. With this update, `GnuTLS` excludes trusted CAs from the signature hash strength checks and therefore no longer rejects certificate chains containing CAs even if they are signed using weak algorithms.
Clone Of:
Environment:
Last Closed: 2021-11-09 19:50:01 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Gitlab gnutls gnutls issues 1202 0 None None None 2021-05-27 17:52:05 UTC
Red Hat Issue Tracker CRYPTO-5204 0 None None None 2021-11-09 00:45:01 UTC
Red Hat Product Errata RHSA-2021:4451 0 None None None 2021-11-09 19:50:05 UTC

Comment 12 errata-xmlrpc 2021-11-09 19:50:01 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: gnutls and nettle security, bug fix, and enhancement 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-2021:4451
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