{ "id": "CVE-2021-45960", "sourceIdentifier": "cve@mitre.org", "published": "2022-01-01T19:15:08.030", "lastModified": "2022-10-06T19:08:03.287", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory)." }, { "lang": "es", "value": "En Expat (tambi\u00e9n se conoce como libexpat) versiones anteriores a 2.4.3, un desplazamiento a la izquierda por 29 (o m\u00e1s) lugares en la funci\u00f3n storeAtts en el archivo xmlparse.c puede conllevar a un comportamiento incorrecto de reasignaci\u00f3n (por ejemplo, asignar muy pocos bytes, o s\u00f3lo liberar memoria)." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH" }, "exploitabilityScore": 2.8, "impactScore": 5.9 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "baseScore": 9.0 }, "baseSeverity": "HIGH", "exploitabilityScore": 8.0, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-682" } ] } ], 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"https://github.com/libexpat/libexpat/issues/531", "source": "cve@mitre.org", "tags": [ "Exploit", "Issue Tracking", "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/libexpat/libexpat/pull/534", "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://security.gentoo.org/glsa/202209-24", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://security.netapp.com/advisory/ntap-20220121-0004/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.debian.org/security/2022/dsa-5073", "source": "cve@mitre.org", "tags": [ "Issue Tracking", "Third Party Advisory" ] }, { "url": "https://www.tenable.com/security/tns-2022-05", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] } ] }