CVE-2020-12403

{"id": "CVE-2020-12403", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.4, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "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": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2021-05-27T19:15:07.953", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1868931", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "security@mozilla.org"}, {"url": "https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes", "tags": ["Release Notes", "Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html", "source": "security@mozilla.org"}, {"url": "https://security.netapp.com/advisory/ntap-20230324-0006/", "source": "security@mozilla.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}, {"type": "Secondary", "source": "security@mozilla.org", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo en la manera en que se implement\u00f3 CHACHA20-POLY1305 en NSS en versiones anteriores a 3.55. Cuando es usado Chacha20 de m\u00faltiples partes, podr\u00eda causar lecturas fuera de l\u00edmites. Este problema fue corregido al desactivar expl\u00edcitamente ChaCha20 de m\u00faltiples partes (que no funcionaba correctamente) y aplicando estrictamente la longitud de la etiqueta. La mayor amenaza de esta vulnerabilidad es la confidencialidad y la disponibilidad del sistema"}], "lastModified": "2023-03-24T16:15:07.843", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:nss:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D021F308-A866-4FB1-ADF1-F00FDBFCCFF6", "versionEndExcluding": "3.55"}], "operator": "OR"}]}], "sourceIdentifier": "security@mozilla.org"}