{"schema_version":"1.8.0","id":"CVE-2020-8617","published":"2020-05-19T14:15:11.987Z","modified":"2026-08-07T11:48:33.735485822Z","related":["CGA-pwxh-p2rj-9p7f","SUSE-SU-2020:1350-1","SUSE-SU-2020:14400-1","SUSE-SU-2020:1914-1","SUSE-SU-2020:2914-1","openSUSE-SU-2020:1699-1","openSUSE-SU-2020:1701-1","openSUSE-SU-2024:10650-1"],"details":"Using a specially-crafted message, an attacker may potentially cause a BIND server to reach an inconsistent state if the attacker knows (or successfully guesses) the name of a TSIG key used by the server. Since BIND, by default, configures a local session key even on servers whose configuration does not otherwise make use of it, almost all current BIND servers are vulnerable. In releases of BIND dating from March 2018 and after, an assertion check in tsig.c detects this inconsistent state and deliberately exits. Prior to the introduction of the check the server would continue operating in an inconsistent state, with potentially harmful results.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/isc-projects/bind9","events":[{"introduced":"19d6c56085e97cf4ac559cdc27edd624127bcb32"},{"last_affected":"bc6c00f15aab336c7467e3fbad977ce05cdf398e"},{"introduced":"71a40862c0be867999867cd99e21c2266a5e452b"},{"last_affected":"a953e08740c2d76cd69e3e9515e14544fa3a1dda"},{"introduced":"29b3a7d84240a51099490c0f39ae537f4e0d6a7a"},{"last_affected":"6491691ac4bec0dc59e3eeba2797d65527f3bcd6"},{"introduced":"d1e053ed8dff25af8af241cf5ee2c83bd41a25ad"},{"last_affected":"098f68799b79aa0c53dc60bf3759347c87a8ba25"},{"introduced":"031bca512d4788356de4cce6f3e61e6b1a878f9c"},{"last_affected":"fa2f16db89ddfb54c4a0e10d103a521e2fda2e0b"},{"introduced":"6270e602ea52209243475c4f1edbabe084e148f7"},{"last_affected":"b310dc7f5ec5458c5b831be99cdbac03e33be4a6"},{"introduced":"04ca7cc4b6993f47ea61852c759d047c83be7b3f"},{"last_affected":"deb57872b630b9957662cf443e1e0001ab0e7b73"},{"introduced":"28e45cd00e2e1e621a2e97ba1ee6bdc6a4102e16"},{"last_affected":"eba38b89007f65bc6c1fdd2451034bbe3908b9a4"}],"database_specific":{"cpe":["cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","cpe:2.3:a:isc:bind:9.12.4:p1:*:*:*:*:*:*","cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.10.7:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*"],"extracted_events":[{"introduced":"9.0.0"},{"last_affected":"9.11.18"},{"introduced":"9.12.0"},{"last_affected":"9.12.4"},{"introduced":"9.13.0"},{"last_affected":"9.13.7"},{"introduced":"9.14.0"},{"last_affected":"9.14.11"},{"introduced":"9.15.0"},{"last_affected":"9.15.6"},{"introduced":"9.16.0"},{"last_affected":"9.16.2"},{"introduced":"9.17.0"},{"last_affected":"9.17.1"},{"introduced":"9.12.4-p1"},{"last_affected":"9.12.4-p1"},{"introduced":"9.9.3-s1"},{"last_affected":"9.9.3-s1"},{"introduced":"9.10.5-s1"},{"last_affected":"9.10.5-s1"},{"introduced":"9.10.7-s1"},{"last_affected":"9.10.7-s1"},{"introduced":"9.11.3-s1"},{"last_affected":"9.11.3-s1"},{"introduced":"9.11.6-s1"},{"last_affected":"9.11.6-s1"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["9.10.5-s1","9.10.7-s1","9.11.3-s1","9.11.6-s1","9.12.4-p1","9.9.3-s1","v9.17.1","v9.16.2","v9.14.11","v9.16.0","v9.15.8","v9.15.7","v9.14.9","v9.15.6","v9.14.6","v9.15.4","v9.15.3","v9.14.4","v9.15.2","v9.14.2","v9.15.0","v9.14.0rc1","v9.13.7","v9.13.6","v9.13.5","v9.13.4","v9.13.3","v9.13.2","v9.13.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8617.json"}},{"ranges":[{"type":"GIT","repo":"https://gitlab.isc.org/isc-projects/bind9","events":[{"introduced":"19d6c56085e97cf4ac559cdc27edd624127bcb32"},{"last_affected":"bc6c00f15aab336c7467e3fbad977ce05cdf398e"},{"introduced":"71a40862c0be867999867cd99e21c2266a5e452b"},{"last_affected":"a953e08740c2d76cd69e3e9515e14544fa3a1dda"},{"introduced":"29b3a7d84240a51099490c0f39ae537f4e0d6a7a"},{"last_affected":"6491691ac4bec0dc59e3eeba2797d65527f3bcd6"},{"introduced":"d1e053ed8dff25af8af241cf5ee2c83bd41a25ad"},{"last_affected":"098f68799b79aa0c53dc60bf3759347c87a8ba25"},{"introduced":"031bca512d4788356de4cce6f3e61e6b1a878f9c"},{"last_affected":"fa2f16db89ddfb54c4a0e10d103a521e2fda2e0b"},{"introduced":"6270e602ea52209243475c4f1edbabe084e148f7"},{"last_affected":"b310dc7f5ec5458c5b831be99cdbac03e33be4a6"},{"introduced":"04ca7cc4b6993f47ea61852c759d047c83be7b3f"},{"last_affected":"deb57872b630b9957662cf443e1e0001ab0e7b73"},{"introduced":"28e45cd00e2e1e621a2e97ba1ee6bdc6a4102e16"},{"last_affected":"eba38b89007f65bc6c1fdd2451034bbe3908b9a4"}],"database_specific":{"cpe":["cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","cpe:2.3:a:isc:bind:9.12.4:p1:*:*:*:*:*:*","cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.10.7:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*"],"extracted_events":[{"introduced":"9.0.0"},{"last_affected":"9.11.18"},{"introduced":"9.12.0"},{"last_affected":"9.12.4"},{"introduced":"9.13.0"},{"last_affected":"9.13.7"},{"introduced":"9.14.0"},{"last_affected":"9.14.11"},{"introduced":"9.15.0"},{"last_affected":"9.15.6"},{"introduced":"9.16.0"},{"last_affected":"9.16.2"},{"introduced":"9.17.0"},{"last_affected":"9.17.1"},{"introduced":"9.12.4-p1"},{"last_affected":"9.12.4-p1"},{"introduced":"9.9.3-s1"},{"last_affected":"9.9.3-s1"},{"introduced":"9.10.5-s1"},{"last_affected":"9.10.5-s1"},{"introduced":"9.10.7-s1"},{"last_affected":"9.10.7-s1"},{"introduced":"9.11.3-s1"},{"last_affected":"9.11.3-s1"},{"introduced":"9.11.6-s1"},{"last_affected":"9.11.6-s1"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["9.10.5-s1","9.10.7-s1","9.11.3-s1","9.11.6-s1","9.12.4-p1","9.9.3-s1","v9.17.1","v9.16.2","v9.14.11","v9.16.0","v9.15.8","v9.15.7","v9.14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