Public bug reported:

Certificate allowed_uses are not indexed by net-snmp. As a result, the
trustCert option works the first time snmpd is started, but fails
thereafter.

In addition, there is no support for intermediate certificates (they are
ignored) and as a result no possibility to use net-snmp with Let's
Encrypt.

Steps to Reproduce:
1. Configure net-snmp for DTLS using localCert and trustCert.
2. Load net-snmp once with empty index.
3. Reload net-snmp.

Actual results:

trustCert is no longer recognised, as the "CA" flag is unindexed and
missing.

Expected results:

trustCert works properly.

Additional info:

Patches to update net-snmp to fix this index issue, as well as to
properly support CA certificates are available here:

https://github.com/net-snmp/net-snmp/issues/255
https://github.com/net-snmp/net-snmp/issues/248
https://github.com/net-snmp/net-snmp/issues/242
https://github.com/net-snmp/net-snmp/issues/241
https://github.com/net-snmp/net-snmp/issues/245

** Affects: nagios-plugins (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: patch

** Tags added: patch

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https://bugs.launchpad.net/bugs/1912390

Title:
  [Patch] TLS/DTLS: inconsistent allowed_uses behaviour when in debug
  mode / not in debug mode

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