{"api_version":"1","generated_at":"2026-04-22T19:50:40+00:00","cve":"CVE-2022-38178","urls":{"html":"https://cve.report/CVE-2022-38178","api":"https://cve.report/api/cve/CVE-2022-38178.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-38178","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-38178"},"summary":{"title":"CVE-2022-38178","description":"By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak. 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It is possible to gradually erode available memory to the point where named crashes for lack of resources."}]},"exploit":[{"lang":"eng","value":"This flaw was discovered in internal testing. We are not aware of any active exploits."}],"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":"In BIND 9.9.12 -> 9.9.13, 9.10.7 -> 9.10.8, 9.11.3 -> 9.16.32, 9.18.0 -> 9.18.6, versions 9.11.4-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, the DNSSEC verification code for the EdDSA algorithm leaks memory when there is a signature length mismatch."}]}]},"references":{"reference_data":[{"name":"https://kb.isc.org/docs/cve-2022-38178","refsource":"CONFIRM","url":"https://kb.isc.org/docs/cve-2022-38178"},{"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"},{"refsource":"CONFIRM","name":"https://security.netapp.com/advisory/ntap-20221228-0009/","url":"https://security.netapp.com/advisory/ntap-20221228-0009/"}]},"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":"INTERNAL"},"work_around":[{"lang":"eng","value":"Disable the following algorithms in your configuration using the disable-algorithms option: ED25519, ED448. Note that this causes zones signed with these algorithms to be treated as insecure."}]},"nvd":{"publishedDate":"2022-09-21 11:15:00","lastModifiedDate":"2023-11-07 03:50:00","problem_types":["CWE-401"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","versionStartIncluding":"9.10.7","versionEndIncluding":"9.10.8","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.7:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.5:s3:*:*:*:supported_preview:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.5:s6:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.12:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.8:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","versionStartIncluding":"9.9.12","versionEndIncluding":"9.9.13","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.16.8:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.16.11:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.27:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.16.13:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.29:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.16.21:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.35:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.14-s1:*:*:*:preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.19-s1:*:*:*:preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.37:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.16.32:s1:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:9.11.3:s4:*:*:supported_preview:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","versionStartIncluding":"9.11.3","versionEndIncluding":"9.16.32","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}