Werk 16225 was deleted. The following Werk is no longer relevant.
Title: Ignore certificates with negative serial numbers
Class: fix
Compatible: incomp
Component: wato
Date: 1700822338
Edition: cre
Level: 1
Version: 2.2.0p16
X509 certificates contain a serial number which is used for various purposes.
Since RFC5280 (May 2008) certificates must be a positive integer.
There used to be certificates with negative serial numbers which were accepted.
Our underlying libraries start to deprecate the support for these certificates, therefore
Checkmk now deems them invalid.
Please note that these certificates are very uncommon.
If Checkmk encounters such a certificate it will log it to `var/log/web.log`.