{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"state":"PUBLISHED","cveId":"CVE-2019-19331","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","dateUpdated":"2024-08-05T02:16:46.880Z","dateReserved":"2019-11-27T00:00:00.000Z","datePublished":"2019-12-16T00:00:00.000Z"},"containers":{"cna":{"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2024-04-26T07:06:04.638Z"},"descriptions":[{"lang":"en","value":"knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB)."}],"affected":[{"vendor":"CZ.NIC","product":"knot-resolver","versions":[{"version":"4.3.0","status":"affected"}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19331"},{"url":"https://www.knot-resolver.cz/2019-12-04-knot-resolver-4.3.0.html"},{"name":"[debian-lts-announce] 20240426 [SECURITY] [DLA 3795-1] knot-resolver security update","tags":["mailing-list"],"url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html"}],"metrics":[{"cvssV3_0":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"CWE-407","cweId":"CWE-407"}]}]},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-05T02:16:46.880Z"},"title":"CVE Program Container","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19331","tags":["x_transferred"]},{"url":"https://www.knot-resolver.cz/2019-12-04-knot-resolver-4.3.0.html","tags":["x_transferred"]},{"name":"[debian-lts-announce] 20240426 [SECURITY] [DLA 3795-1] knot-resolver security update","tags":["mailing-list","x_transferred"],"url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html"}]}]}}