← SwissSign AG cases
Bugzilla #1965828
Certificate Problem Report
SwissSign: OCSP outage
RESOLVED
FIXED
SwissSign AG
AI Summary
SwissSign experienced an OCSP outage affecting its responder for one CA platform from May 12, 2025, 09:23:58 to 10:13:56 UTC. The incident was self-reported and resulted in the issuance of 28 TLS certificates and 115 S/MIME certificates during the downtime. The root cause was identified as a combination of configuration issues within the OCSP responder service, which led to unresponsiveness under certain conditions. Remedial actions have been implemented, including configuration changes and load testing, to ensure improved service availability in the future.
Chronology
- OCSP outage detected
- Service restored
- Full incident report published
- Report closure summary issued
Participants
Roman Fischer
External References
Similar Local Cases
SwissSign: CRL/OCSP revocation time mismatch
SwissSign: Invalid CT data in issued certs (SABRE.CT misconfiguration)
SwissSign: Certificate Profile error for S/MIME MV
SwissSign: CP/CPS certificate profile issue
SwissSign: 'c/o' in streetAddress of EV certificate
SwissSign: Certificate issue with Signature
SwissSign: OCSP responder unreachable
SwissSign: Failure to provide a preliminary report within 24 hours.