Upgrade everything fixed the problem. Therefore I'm willing to conclude it was caused by mismatched binaries somewhere, and this bug can be closed out.
- Bug#1120348: xca generates malformed certificat... Joshua Hudson
- Bug#1120348: (no subject) Thomas Ward
- Processed: Unable to reproduce. Debian Bug Tracking System
- Bug#1120348: Unable to reproduce. Thomas Ward
- Bug#1120348: Unable to reproduce. Joshua Hudson
- Bug#1120348: Unable to reproduce. Thomas Ward
- Bug#1120348: Unable to reproduce. Joshua Hudson
- Bug#1120348: Joshua Hudson
