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Description of problem:
OSPP v4.2 certification requires that x509 certificates be carefully checked.

https://www.niap-ccevs.org/MMO/PP/-442-/#FIA_X509_EXT.1

The test is that a certificate is created that has code signing enabled but then installed so that the application tries to use it for TLS client or server. It should fail this check. To check the key purpose, it would have to use the call gnutls_certificate_verify_peers() and pass explicitly the purpose to check against (e.g.,GNUTLS_KP_TLS_WWW_SERVER).


Version-Release number of selected component (if applicable):
rsyslog-8.37.0-10.el8

Steps to Reproduce:
1. Create a x509 certificate with only code signing enabled
2. Install for TLS usage
3. Start the daemon

Also, a server certificate could be used on a client system or vice versa.

Actual results:
TLS connection works

Expected results:
Failed connection

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-2019:3371