{ "id": "CVE-2020-24863", "sourceIdentifier": "cve@mitre.org", "published": "2020-09-03T15:15:11.520", "lastModified": "2020-09-11T14:03:48.277", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "A memory corruption vulnerability was found in the kernel function kern_getfsstat in MidnightBSD before 1.2.7 and 1.3 through 2020-08-19, and FreeBSD through 11.4, that allows an attacker to trigger an invalid free and crash the system via a crafted size value in conjunction with an invalid mode." }, { "lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad de corrupci\u00f3n de memoria en la funci\u00f3n del kernel kern_getfsstat en MidnightBSD versiones anteriores a 1.2.7 y versiones 1.3 hasta el19-08-2020, y FreeBSD versiones hasta 11.4, que permite a un atacante desencadenar una liberaci\u00f3n no v\u00e1lida y bloquear el sistema por medio de un valor de tama\u00f1o dise\u00f1ado en conjunto con un modo no v\u00e1lido" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.9 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 3.9, "impactScore": 6.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-787" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.2.7", "matchCriteriaId": "360E6FE9-63B9-43CB-B559-B5D21661B6C8" }, { "vulnerable": true, "criteria": "cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.3", "versionEndIncluding": "2020-08-19", "matchCriteriaId": "45E97C30-01B2-49EC-992D-6FED17D48BFB" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*", "versionEndIncluding": "11.4", "matchCriteriaId": "DA28C915-6E92-4F28-9F28-AAF9E5A208C0" } ] } ] } ], "references": [ { "url": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt", "source": "cve@mitre.org", "tags": [ "Exploit", "Vendor Advisory" ] }, { "url": "https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c", "source": "cve@mitre.org", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc", "source": "cve@mitre.org", "tags": [ "Patch", "Vendor Advisory" ] }, { "url": "https://www.midnightbsd.org/notes/", "source": "cve@mitre.org", "tags": [ "Release Notes", "Vendor Advisory" ] } ] }