CVE-2021-36773

{"id": "CVE-2021-36773", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-07-18T04:15:08.110", "references": [{"url": "https://github.com/vtriolet/writings/blob/main/posts/2021/ublock_origin_and_umatrix_denial_of_service.adoc", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00024.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://news.ycombinator.com/item?id=27833752", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/vtriolet/writings/blob/main/posts/2021/ublock_origin_and_umatrix_denial_of_service.adoc", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00024.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://news.ycombinator.com/item?id=27833752", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-674"}]}], "descriptions": [{"lang": "en", "value": "uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality)."}, {"lang": "es", "value": "uBlock Origin versiones anteriores a 1.36.2 y nMatrix versiones anteriores a 4.4.9, admiten una profundidad arbitraria de anidaci\u00f3n de par\u00e1metros para un bloqueo estricto, lo que permite que los sitios web dise\u00f1ados causar una denegaci\u00f3n de servicio (recursividad ilimitada que puede desencadenar el consumo de memoria y la p\u00e9rdida de toda la funcionalidad de bloqueo)"}], "lastModified": "2024-11-21T06:14:04.060", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sciruby:nmatrix:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A335ADE-C257-42EE-963F-9B2A9A67AC31", "versionEndExcluding": "4.4.9"}, {"criteria": "cpe:2.3:a:ublockorigin:ublock_origin:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07A8F0D7-0E09-4BCF-8F2C-AB552732F563", "versionEndExcluding": "1.36.2"}, {"criteria": "cpe:2.3:a:umatrix_project:umatrix:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D3550549-705D-487D-847A-6A5AE34F4056", "versionEndExcluding": "1.4.2"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}