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Bugzilla #1832093 Certificate Problem Report

Asseco DS / Certum: Subordinate certificates with sequential serial number

RESOLVED FIXED Asseco Data Systems S.A.
AI Summary

Asseco Data Systems S.A. identified an issue during a periodic self-audit where three subordinate certificates were found to have sequential serial numbers, which may indicate insufficient entropy in their generation. The CA took immediate action, revoking two of the certificates and implementing fixes to prevent future occurrences. A comprehensive review of their database confirmed no additional affected certificates. The final certificate was revoked as scheduled, and the issue was resolved.

Model: gpt-4o-mini Generated: 2026-06-13 21:31 UTC Confidence: 1.00
Chronology
  1. Discovery of sequential serial numbers during self-audit
  2. Revocation of the first subordinate certificate
  3. Revocation of the second subordinate certificate
  4. Revocation of the third subordinate certificate
  5. Case resolved
Participants
Wojciech Trapczyński Matthias B. Wilson
External References
Original Bugzilla Case crt.sh crt.sh crt.sh
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