ISC BIND named contains a flaw when acting as a DNSSEC validating resolver. The issue is triggered when querying a zone undergoing a key algorithm rollover. This may allow a remote attacker to mark certain zone data as insecure.
Remote / Network Access
Loss of Integrity
Upgrade to version 9.4-ESV-R4, 9.6.2-P3, 9.6-ESV-R3, 9.7.2-P3 or higher, as they have been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
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