CVE-2021-29627

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{"affected": [{"affectedData": [{"product": "FreeBSD", "vendor": "n/a", "versions": [{"status": "affected", "version": "FreeBSD 12.2-RELEASE before p6"}]}], "source": "secteam@freebsd.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*", "matchCriteriaId": "17AC6343-11EC-4586-91EB-D7C4D4C1699E", "versionEndExcluding": "12.2", "versionStartIncluding": "12.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:*", "matchCriteriaId": "73D9C08B-8F5B-40C4-A5BD-B00D2E4C012D", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p1:*:*:*:*:*:*", "matchCriteriaId": "62A178A3-6A52-4981-9A27-FB07AD8AF778", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p2:*:*:*:*:*:*", "matchCriteriaId": "54A487B1-E5CE-4C76-87E8-518D24C5D86D", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:beta1:*:*:*:*:*:*", "matchCriteriaId": "7412DBD8-BB1F-48A8-AAE1-BA5C8D7BDDF7", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:beta2:*:*:*:*:*:*", "matchCriteriaId": "833DFF5B-BC50-424A-ABCF-EC632F421B76", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:beta3:*:*:*:*:*:*", "matchCriteriaId": "9F27016E-4117-4094-BB7A-9C56E38024D9", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:beta4:*:*:*:*:*:*", "matchCriteriaId": "B149BF69-951D-47B4-996C-9E4773DA75B7", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "FC271C93-EB83-4301-B7BA-F3249B71B1EA", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "04329338-AC28-4A74-BE6B-CE8EC6CC37B7", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:rc3:*:*:*:*:*:*", "matchCriteriaId": "ADBA841F-5C83-4759-84B7-B59DA1B12EA8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In FreeBSD 13.0-STABLE before n245050, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 12.2-RELEASE before p6, listening socket accept filters implementing the accf_create callback incorrectly freed a process supplied argument string. Additional operations on the socket can lead to a double free or use after free."}, {"lang": "es", "value": "En FreeBSD versiones 13.0-STABLE anteriores a n245050, versiones 12.2-STABLE anteriores a r369525, versiones 13.0-RC4 anteriores a p0 y versiones 12.2-RELEASE anteriores a p6, los filtros de aceptaci\u00f3n de socket de escucha que implementan la devoluci\u00f3n de llamada accf_create liberaron incorrectamente una cadena de argumentos proporcionada por el proceso. Las operaciones adicionales en el socket pueden conllevar a una doble liberaci\u00f3n o un uso de la memoria previamente liberada"}], "id": "CVE-2021-29627", "lastModified": "2026-06-17T03:48:03.363", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-07T15:15:13.763", "references": [{"source": "secteam@freebsd.org", "tags": ["Vendor Advisory"], "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.asc"}, {"source": "secteam@freebsd.org", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210423-0007/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.asc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210423-0007/"}], "sourceIdentifier": "secteam@freebsd.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}, {"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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