{"id":"CVE-2020-8620","details":"In BIND 9.15.6 -\u003e 9.16.5, 9.17.0 -\u003e 9.17.3, An attacker who can establish a TCP connection with the server and send data on that connection can exploit this to trigger the assertion failure, causing the server to exit.","modified":"2026-07-17T21:01:24.474449788Z","published":"2020-08-21T21:15:12.090Z","related":["SUSE-SU-2020:2914-1","openSUSE-SU-2020:1699-1","openSUSE-SU-2020:1701-1","openSUSE-SU-2024:10650-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"],"extracted_events":[{"introduced":"12.04"},{"last_affected":"12.04"},{"introduced":"16.04"},{"last_affected":"16.04"},{"introduced":"18.04"},{"last_affected":"18.04"}],"source":"CPE_STRING","vendor_product":"canonical:ubuntu_linux"},{"cpes":["cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.9.13:s1:*:*:supported_preview:*:*:*"],"extracted_events":[{"introduced":"9.9.13-s1"},{"last_affected":"9.9.13-s1"},{"introduced":"9.9.13-s1"},{"last_affected":"9.9.13-s1"},{"introduced":"9.11.21-s1"},{"last_affected":"9.11.21-s1"},{"introduced":"9.11.21-s1"},{"last_affected":"9.11.21-s1"}],"source":"CPE_STRING","vendor_product":"isc:bind"},{"cpes":["cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*","cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"15.1"},{"last_affected":"15.1"},{"introduced":"15.2"},{"last_affected":"15.2"}],"source":"CPE_STRING","vendor_product":"opensuse:leap"}]},"references":[{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"},{"type":"ADVISORY","url":"https://kb.isc.org/docs/cve-2020-8620"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202008-19"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20200827-0003/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4468-1/"},{"type":"ADVISORY","url":"https://www.synology.com/security/advisory/Synology_SA_20_19"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/isc-projects/bind9","events":[{"introduced":"fa2f16db89ddfb54c4a0e10d103a521e2fda2e0b"},{"last_affected":"c00b4586ab21960bc2b13989f77ea8465e989187"},{"introduced":"04ca7cc4b6993f47ea61852c759d047c83be7b3f"},{"last_affected":"079e9baebe7d2b42610b9d7bdc0f8a5f78bbe2d5"},{"introduced":"470cee7071b278e016ae94cd403dbc13689d3444"},{"last_affected":"617639b7cc40ba9eb6fde2d98099726d50da812e"}],"database_specific":{"cpe":["cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","cpe:2.3:a:isc:bind:9.9.12:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*"],"extracted_events":[{"introduced":"9.15.6"},{"last_affected":"9.16.5"},{"introduced":"9.17.0"},{"last_affected":"9.17.3"},{"introduced":"9.9.12-s1"},{"last_affected":"9.9.12-s1"},{"introduced":"9.11.3-s1"},{"last_affected":"9.11.3-s1"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["9.11.3-s1","9.9.12-s1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-8620.json"}},{"ranges":[{"type":"GIT","repo":"https://gitlab.isc.org/isc-projects/bind9","events":[{"introduced":"fa2f16db89ddfb54c4a0e10d103a521e2fda2e0b"},{"last_affected":"c00b4586ab21960bc2b13989f77ea8465e989187"},{"introduced":"04ca7cc4b6993f47ea61852c759d047c83be7b3f"},{"last_affected":"079e9baebe7d2b42610b9d7bdc0f8a5f78bbe2d5"},{"introduced":"470cee7071b278e016ae94cd403dbc13689d3444"},{"last_affected":"617639b7cc40ba9eb6fde2d98099726d50da812e"}],"database_specific":{"cpe":["cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","cpe:2.3:a:isc:bind:9.9.12:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*"],"extracted_events":[{"introduced":"9.15.6"},{"last_affected":"9.16.5"},{"introduced":"9.17.0"},{"last_affected":"9.17.3"},{"introduced":"9.9.12-s1"},{"last_affected":"9.9.12-s1"},{"introduced":"9.11.3-s1"},{"last_affected":"9.11.3-s1"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["9.11.3-s1","9.9.12-s1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-8620.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}