description: A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.
problem types: CWE-358
affected:
{
product: unbound
vendor: NLnet Labs
versions:
status: affected, version: before 1.6.8
}