{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-12705", "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22", "state": "PUBLISHED", "assignerShortName": "isc", "dateReserved": "2024-12-17T14:25:50.907Z", "datePublished": "2025-01-29T21:40:27.839Z", "dateUpdated": "2025-02-07T17:02:44.473Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "404fd4d2-a609-4245-b543-2c944a302a22", "shortName": "isc", "dateUpdated": "2025-01-29T21:40:27.839Z"}, "title": "DNS-over-HTTPS implementation suffers from multiple issues under heavy query load", "datePublic": "2025-01-29T00:00:00.000Z", "affected": [{"vendor": "ISC", "product": "BIND 9", "versions": [{"version": "9.18.0", "lessThanOrEqual": "9.18.32", "status": "affected", "versionType": "custom"}, {"version": "9.20.0", "lessThanOrEqual": "9.20.4", "status": "affected", "versionType": "custom"}, {"version": "9.21.0", "lessThanOrEqual": "9.21.3", "status": "affected", "versionType": "custom"}, {"version": "9.18.11-S1", "lessThanOrEqual": "9.18.32-S1", "status": "affected", "versionType": "custom"}], "defaultStatus": "unaffected"}], "metrics": [{"cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-770", "description": "CWE-770 Allocation of Resources Without Limits or Throttling"}]}], "descriptions": [{"lang": "en", "value": "Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11-S1 through 9.18.32-S1."}], "impacts": [{"descriptions": [{"lang": "en", "value": "By flooding a target resolver with HTTP/2 traffic and exploiting this flaw, an attacker could overwhelm the server, causing high CPU and/or memory usage and preventing other clients from establishing DoH connections. This would significantly impair the resolver's performance and effectively deny legitimate clients access to the DNS resolution service."}]}], "workarounds": [{"lang": "en", "value": "The issue affects only the DNS-over-HTTPS protocol and does not apply to instances where DoH is not enabled."}], "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 9: 9.18.33, 9.20.5, 9.21.4, or 9.18.33-S1."}], "credits": [{"lang": "en", "value": "ISC would like to thank Jean-Fran\u00e7ois Billaud for bringing this vulnerability to our attention."}], "references": [{"url": "https://kb.isc.org/docs/cve-2024-12705", "name": "CVE-2024-12705", "tags": ["vendor-advisory"]}], "source": {"discovery": "EXTERNAL"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-01-30T15:25:35.856020Z", "id": "CVE-2024-12705", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-30T15:27:00.887Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://security.netapp.com/advisory/ntap-20250207-0003/"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-02-07T17:02:44.473Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11-S1 through 9.18.32-S1."}, {"lang": "es", "value": "Los clientes que utilizan DNS sobre HTTPS (DoH) pueden agotar la CPU o la memoria de un solucionador de DNS inund\u00e1ndolo con tr\u00e1fico HTTP/2 v\u00e1lido o no v\u00e1lido manipulado. Este problema afecta a las versiones de BIND 9 9.18.0 a 9.18.32, 9.20.0 a 9.20.4, 9.21.0 a 9.21.3 y 9.18.11-S1 a 9.18.32-S1."}], "id": "CVE-2024-12705", "lastModified": "2025-02-07T17:15:30.177", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-officer@isc.org", "type": "Secondary"}]}, "published": "2025-01-29T22:15:28.800", "references": [{"source": "security-officer@isc.org", "url": "https://kb.isc.org/docs/cve-2024-12705"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20250207-0003/"}], "sourceIdentifier": "security-officer@isc.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "security-officer@isc.org", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Jean-Fran\u00e7ois Billaud for reporting this issue.", "affected_release": [{"advisory": "RHSA-2025:1670", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "bind9.18-32:9.18.29-1.el9_5.1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-02-19T00:00:00Z"}, {"advisory": "RHSA-2025:1907", "cpe": "cpe:/a:redhat:openshift:4.16::el9", "package": "rhcos-416.94.202502260030-0", "product_name": "Red Hat OpenShift Container Platform 4.16", "release_date": "2025-03-05T00:00:00Z"}], "bugzilla": {"description": "bind: bind9: DNS-over-HTTPS implementation suffers from multiple issues under heavy query load", "id": "2342880", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2342880"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-400", "details": ["Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11-S1 through 9.18.32-S1.", "A flaw was found in BIND 9. By flooding a target resolver with HTTP/2 traffic and exploiting this flaw, an attacker could overwhelm the server, causing high CPU and/or memory usage and preventing other clients from establishing DoH connections. This issue could significantly impair the resolver's performance and effectively deny legitimate clients access to the DNS resolution service."], "mitigation": {"lang": "en:us", "value": "If the feature is not needed, disable DNS-over-HTTPS (DoH) in your bind config. Otherwise, we recommend upgrading to a patched version of bind."}, "name": "CVE-2024-12705", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "bind9.16", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "dhcp", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-01-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-12705\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-12705\nhttps://kb.isc.org/docs/cve-2024-12705"], "statement": "The bind package shipped by Red Hat by default does not enable DNS-over-HTTPS functionality.\nThe bind-9.11 version used in Red Hat Enterprise Linux 7 and 8 does not have any DNS-over-HTTP/HTTPS/TLS implementation and is therefore not affected.\nThe bind-9.16 version used in Red Hat Enterprise Linux 8 and 9 does not have any DNS-over-HTTP/HTTPS/TLS implementation and is therefore not affected by this vulnerability.", "threat_severity": "Important"}