{"id":"CVE-2020-8623","state":"PUBLISHED","title":"A flaw in native PKCS#11 code can lead to a remotely triggerable assertion failure in pk11.c","description":"In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with \"--enable-native-pkcs11\" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker","publishedAt":"2020-08-21T20:50:19.797Z","updatedAt":"2024-09-17T03:19:11.433Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"isc"},"assigner":"isc","products":["ISC BIND9"],"affected":[{"vendor":"ISC","product":"BIND9","versions":[{"version":"9.10.0","status":"affected","lessThan":"unspecified","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"9.11.22","versionType":"custom"},{"version":"9.12.0","status":"affected","lessThan":"unspecified","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"9.16.6","versionType":"custom"},{"version":"9.17.0","status":"affected","lessThan":"unspecified","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"9.17.4","versionType":"custom"},{"version":"9.10.5-S1","status":"affected","lessThan":"Supported Preview*","changes":[{"at":"9.11.22-S1","status":"unaffected"}],"versionType":"custom"}]}],"references":["https://kb.isc.org/docs/cve-2020-8623","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE/","https://security.netapp.com/advisory/ntap-20200827-0003/","https://usn.ubuntu.com/4468-1/","https://www.debian.org/security/2020/dsa-4752","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP/","https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html","https://security.gentoo.org/glsa/202008-19","https://www.synology.com/security/advisory/Synology_SA_20_19","http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html","http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:47:44.297Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/8xxx/CVE-2020-8623.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-8623","state":"PUBLISHED","datePublished":"2020-08-21T20:50:19.797Z","dateUpdated":"2024-09-17T03:19:11.433Z","assignerShortName":"isc","assignerOrgId":"404fd4d2-a609-4245-b543-2c944a302a22","dateReserved":"2020-02-05T00:00:00.000Z"},"containers":{"cna":{"title":"A flaw in native PKCS#11 code can lead to a remotely triggerable assertion failure in pk11.c","descriptions":[{"lang":"en","value":"In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with \"--enable-native-pkcs11\" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker"}],"affected":[{"vendor":"ISC","product":"BIND9","versions":[{"version":"9.10.0","status":"affected","lessThan":"unspecified","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"9.11.22","versionType":"custom"},{"version":"9.12.0","status":"affected","lessThan":"unspecified","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"9.16.6","versionType":"custom"},{"version":"9.17.0","status":"affected","lessThan":"unspecified","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"9.17.4","versionType":"custom"},{"version":"9.10.5-S1","status":"affected","lessThan":"Supported Preview*","changes":[{"at":"9.11.22-S1","status":"unaffected"}],"versionType":"custom"}]}],"references":[{"url":"https://kb.isc.org/docs/cve-2020-8623","tags":["x_refsource_CONFIRM"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE/","name":"FEDORA-2020-a02b7a0f21","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://security.netapp.com/advisory/ntap-20200827-0003/","tags":["x_refsource_CONFIRM"]},{"url":"https://usn.ubuntu.com/4468-1/","name":"USN-4468-1","tags":["vendor-advisory","x_refsource_UBUNTU"]},{"url":"https://www.debian.org/security/2020/dsa-4752","name":"DSA-4752","tags":["vendor-advisory","x_refsource_DEBIAN"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP/","name":"FEDORA-2020-14c194e5af","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html","name":"[debian-lts-announce] 20200829 [SECURITY] [DLA 2355-1] bind9 security update","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://security.gentoo.org/glsa/202008-19","name":"GLSA-202008-19","tags":["vendor-advisory","x_refsource_GENTOO"]},{"url":"https://www.synology.com/security/advisory/Synology_SA_20_19","tags":["x_refsource_CONFIRM"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html","name":"openSUSE-SU-2020:1699","tags":["vendor-advisory","x_refsource_SUSE"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html","name":"openSUSE-SU-2020:1701","tags":["vendor-advisory","x_refsource_SUSE"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"description":"If BIND is built with \"--enable-native-pkcs11\" then a specially crafted query for a zone signed with RSA can trigger an assertion failure.  Affects BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"isc","dateUpdated":"2020-10-20T11:06:36.000Z","orgId":"404fd4d2-a609-4245-b543-2c944a302a22"},"credits":[{"lang":"en","value":"ISC would like to thank Lyu Chiy for bringing this vulnerability to our attention."}],"datePublic":"2020-08-20T00:00:00.000Z","exploits":[{"lang":"en","value":"We are not aware of any active exploits."}],"solutions":[{"lang":"en","value":"Upgrade to the patched release most closely related to your current version of BIND:\n\n    BIND 9.11.22\n    BIND 9.16.6\n    BIND 9.17.4\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    BIND 9.11.22-S1"}],"source":{"discovery":"UNKNOWN"},"workarounds":[{"lang":"en","value":"No workarounds known."}],"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-officer@isc.org","DATE_PUBLIC":"2020-08-20T18:35:08.000Z","ID":"CVE-2020-8623","STATE":"PUBLIC","TITLE":"A flaw in native PKCS#11 code can lead to a remotely triggerable assertion failure in pk11.c"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"BIND9","version":{"version_data":[{"version_affected":">=","version_value":"9.10.0"},{"version_affected":"<","version_value":"9.11.22"},{"version_affected":">=","version_value":"9.12.0"},{"version_affected":"<","version_value":"9.16.6"},{"version_affected":">=","version_value":"9.17.0"},{"version_affected":"<","version_value":"9.17.4"},{"version_affected":">=","version_name":"Supported Preview","version_value":"9.10.5-S1"},{"version_affected":"<","version_name":"Supported Preview","version_value":"9.11.22-S1"}]}}]},"vendor_name":"ISC"}]}},"credit":[{"lang":"eng","value":"ISC would like to thank Lyu Chiy for bringing this vulnerability to our attention."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with \"--enable-native-pkcs11\" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker"}]},"exploit":[{"lang":"en","value":"We are not aware of any active exploits."}],"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"If BIND is built with \"--enable-native-pkcs11\" then a specially crafted query for a zone signed with RSA can trigger an assertion failure.  Affects BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition"}]}]},"references":{"reference_data":[{"name":"https://kb.isc.org/docs/cve-2020-8623","refsource":"CONFIRM","url":"https://kb.isc.org/docs/cve-2020-8623"},{"name":"FEDORA-2020-a02b7a0f21","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE/"},{"name":"https://security.netapp.com/advisory/ntap-20200827-0003/","refsource":"CONFIRM","url":"https://security.netapp.com/advisory/ntap-20200827-0003/"},{"name":"USN-4468-1","refsource":"UBUNTU","url":"https://usn.ubuntu.com/4468-1/"},{"name":"DSA-4752","refsource":"DEBIAN","url":"https://www.debian.org/security/2020/dsa-4752"},{"name":"FEDORA-2020-14c194e5af","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP/"},{"name":"[debian-lts-announce] 20200829 [SECURITY] [DLA 2355-1] bind9 security update","refsource":"MLIST","url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html"},{"name":"GLSA-202008-19","refsource":"GENTOO","url":"https://security.gentoo.org/glsa/202008-19"},{"name":"https://www.synology.com/security/advisory/Synology_SA_20_19","refsource":"CONFIRM","url":"https://www.synology.com/security/advisory/Synology_SA_20_19"},{"name":"openSUSE-SU-2020:1699","refsource":"SUSE","url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html"},{"name":"openSUSE-SU-2020:1701","refsource":"SUSE","url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"}]},"solution":[{"lang":"en","value":"Upgrade to the patched release most closely related to your current version of BIND:\n\n    BIND 9.11.22\n    BIND 9.16.6\n    BIND 9.17.4\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    BIND 9.11.22-S1"}],"source":{"discovery":"UNKNOWN"},"work_around":[{"lang":"en","value":"No workarounds known."}]}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://kb.isc.org/docs/cve-2020-8623","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE/","name":"FEDORA-2020-a02b7a0f21","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20200827-0003/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://usn.ubuntu.com/4468-1/","name":"USN-4468-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"https://www.debian.org/security/2020/dsa-4752","name":"DSA-4752","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP/","name":"FEDORA-2020-14c194e5af","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html","name":"[debian-lts-announce] 20200829 [SECURITY] [DLA 2355-1] bind9 security update","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://security.gentoo.org/glsa/202008-19","name":"GLSA-202008-19","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"]},{"url":"https://www.synology.com/security/advisory/Synology_SA_20_19","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html","name":"openSUSE-SU-2020:1699","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html","name":"openSUSE-SU-2020:1701","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T10:03:46.191Z"}}]}}}