I found the solution to this issue:in /etc/ssl/certs, there must be a symlink to "DigiCert_Global_Root_CA.pem" named "3513523f.0" Reinstalling ca-certificates was not sufficient, because following link was existing: DigiCert_Global_Root_CA.pem -> /usr/share/ca-certificates/mozilla/DigiCert_Global_Root_CA.crt After deleting this link and reinstalling ca-certificates, the certificate could be verified successfully.
- Bug#996797: python3: certificate verification fails in python... Armin Fuerst
- Bug#996797: solution found Armin Fuerst
