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Servers that 'forward only' are not affected.","In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries 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be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.","While assertion is good for catching logic errors and reducing the chances of reaching more serious vulnerability conditions, it can still lead to a denial of service.\nFor example, if a server handles multiple simultaneous connections, and an assert() occurs in one single connection that causes all other connections to be dropped, this is a reachable assertion that leads to a denial of service.","Draft","Base","Simple",1,false,[],{"title":126,"metaDescription":127,"keywords":128,"canonicalUrl":129,"structuredData":130},"What is CVE-2020-8621? 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