BUG/MEDIUM: ssl: check OCSP calloc in ssl_sock_load_ocsp()

Check the return of the calloc in ssl_sock_load_ocsp() which could lead
to a NULL dereference.

This was introduced by commit be2774d ("MEDIUM: ssl: Added support for
Multi-Cert OCSP Stapling").

Could be backported as far as 1.7.
1 file changed