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9.16.33"},{"version_name":"Open Source Branch 9.18","version_value":"9.18.0 through versions before 9.18.7"},{"version_name":"Supported Preview Branches 9.9-S through 9.11-S","version_value":"9.9.3-S1 through versions up to and including 9.11.37-S1"},{"version_name":"Supported Preview Branch 9.16-S","version_value":"9.16.8-S1 through versions before 9.16.33-S1"},{"version_name":"Development Branch 9.19","version_value":"9.19.0 through versions before 9.19.5"}]}}]},"vendor_name":"ISC"}]}},"credit":[{"lang":"eng","value":"ISC would like to thank Yehuda Afek from Tel-Aviv University and Anat Bremler-Barr & Shani Stajnrod from Reichman University for bringing this vulnerability to our attention."}],"description":{"description_data":[{"lang":"eng","value":"By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service."}]},"exploit":[{"lang":"eng","value":"We are not aware of any active exploits."}],"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","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:L","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"In BIND 9.0.0 -> 9.16.32, 9.18.0 -> 9.18.6, versions 9.9.3-S1 -> 9.11.37-S1, 9.16.8-S1 -> 9.16.32-S1 of the BIND Supported Preview Edition, and versions 9.19.0 -> 9.19.4 of the BIND 9.19 development branch, a flaw in resolver code can cause named to spend excessive amounts of time on processing large delegations."}]}]},"references":{"reference_data":[{"name":"https://kb.isc.org/docs/cve-2022-2795","refsource":"CONFIRM","url":"https://kb.isc.org/docs/cve-2022-2795"},{"refsource":"MLIST","name":"[oss-security] 20220921 ISC has disclosed six vulnerabilities in BIND (CVE-2022-2795, CVE-2022-2881, CVE-2022-2906, CVE-2022-3080, CVE-2022-38177, CVE-2022-38178)","url":"http://www.openwall.com/lists/oss-security/2022/09/21/3"},{"refsource":"DEBIAN","name":"DSA-5235","url":"https://www.debian.org/security/2022/dsa-5235"},{"refsource":"FEDORA","name":"FEDORA-2022-ef038365de","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/"},{"refsource":"FEDORA","name":"FEDORA-2022-8268735e06","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/"},{"refsource":"FEDORA","name":"FEDORA-2022-b197d64471","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/"},{"refsource":"MLIST","name":"[debian-lts-announce] 20221005 [SECURITY] [DLA 3138-1] bind9 security update","url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00007.html"},{"refsource":"GENTOO","name":"GLSA-202210-25","url":"https://security.gentoo.org/glsa/202210-25"}]},"solution":[{"lang":"eng","value":"Upgrade to the patched release most closely related to your current version of BIND: BIND 9.16.33, BIND 9.18.7, BIND 9.19.5, or for BIND Supported Preview Edition (a special feature preview branch of BIND provided to eligible ISC support customers): BIND 9.16.33-S1."}],"source":{"discovery":"EXTERNAL"},"work_around":[{"lang":"eng","value":"No workarounds known."}]},"nvd":{"publishedDate":"2022-09-21 11:15:00","lastModifiedDate":"2023-11-07 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