Certificate
Indicates a problem verifying the certificate chain the attestation statement is built upon. This can either be just a borked certificate chain (i.e. just a wrong certificate somewhere in the chain), or the chain not being rooted in a valid trust anchor. Most probably, however, a legitimate app on a trusted OS will simply have fallen victim to the system clock being too far ahead. This heavily depends on the OS a device was originally shipped with, (or just Samsung being Samsung and being unable to correctly encode a timestamp conforming to ASN.1)
Inheritors
Types
Indicates that temporal certificate chain verification failed (i.e. the client's clock is not synchronised with the back-end)
Indicates either a borked certificate chain or one that is not rooted in one of the configured trust anchors. It can also indicate revoked certificates.