routinator -- potential DOS attack

 Due to a mistake in error handling, data in RRDP snapshot and delta files
 that isn’t correctly base 64 encoded is treated as a fatal error and causes
 Routinator to exit.

 Worst case impact of this vulnerability is denial of service for the RPKI
 data that Routinator provides to routers. This may stop your network from
 validating route origins based on RPKI data. This vulnerability does not
 allow an attacker to manipulate RPKI data. We are not aware of exploitation
 of this vulnerability at this point in time.

 Starting with release 0.11.3, Routinator handles encoding errors by rejecting
 the snapshot or delta file and continuing with validation. In case of an
 invalid delta file, it will try using the snapshot instead. If a snapshot file
 is invalid, the update of the repository will fail and an update through rsync
 is attempted.

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