cve-2020-8621
Vulnerability from cvelistv5
Published
2020-08-21 20:50
Modified
2024-09-16 16:18
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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 to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.
References
security-officer@isc.orghttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlMailing List, Third Party Advisory
security-officer@isc.orghttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlMailing List, Third Party Advisory
security-officer@isc.orghttps://kb.isc.org/docs/cve-2020-8621Vendor Advisory
security-officer@isc.orghttps://security.gentoo.org/glsa/202008-19Third Party Advisory
security-officer@isc.orghttps://security.netapp.com/advisory/ntap-20200827-0003/Third Party Advisory
security-officer@isc.orghttps://usn.ubuntu.com/4468-1/Third Party Advisory
security-officer@isc.orghttps://www.synology.com/security/advisory/Synology_SA_20_19Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://kb.isc.org/docs/cve-2020-8621Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202008-19Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200827-0003/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4468-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.synology.com/security/advisory/Synology_SA_20_19Third Party Advisory
Impacted products
Vendor Product Version
ISC BIND9 Version: 9.14.0   < *
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Los servidores con \\\"forward only\\\" no están afectados.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-officer@isc.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:N/A:P\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-617\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.14.0\",\"versionEndIncluding\":\"9.16.5\",\"matchCriteriaId\":\"A5C115A2-721C-4A50-96E3-E31833829E37\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.17.0\",\"versionEndIncluding\":\"9.17.3\",\"matchCriteriaId\":\"85031A21-4F54-4CE6-B0F3-66D09928FF3C\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B620311B-34A3-48A6-82DF-6F078D7A4493\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B009C22E-30A4-4288-BCF6-C3E81DEAF45A\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*\",\"matchCriteriaId\":\"7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"902B8056-9E37-443B-8905-8AA93E2447FB\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:synology:dns_server:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.2.2-5027\",\"matchCriteriaId\":\"54997147-2421-4DE2-9B7C-844D0DC89D20\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E94F7F59-1785-493F-91A7-5F5EA5E87E4D\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://kb.isc.org/docs/cve-2020-8621\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202008-19\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20200827-0003/\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/4468-1/\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.synology.com/security/advisory/Synology_SA_20_19\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://kb.isc.org/docs/cve-2020-8621\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202008-19\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20200827-0003/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/4468-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.synology.com/security/advisory/Synology_SA_20_19\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
   },
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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