CVE-2023-5941

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-5941", "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "state": "PUBLISHED", "assignerShortName": "freebsd", "dateReserved": "2023-11-02T18:54:11.312Z", "datePublished": "2023-11-08T08:52:26.564Z", "dateUpdated": "2025-02-13T17:25:58.008Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "modules": ["libc"], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [{"lessThan": "p7", "status": "affected", "version": "12.4-RELEASE", "versionType": "release"}, {"lessThan": "p5", "status": "affected", "version": "13.2-RELEASE", "versionType": "release"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "inooo"}], "descriptions": [{"lang": "en", "value": "In versions of FreeBSD 12.4-RELEASE prior to 12.4-RELEASE-p7 and FreeBSD 13.2-RELEASE prior to 13.2-RELEASE-p5 the __sflush() stdio function in libc does not correctly update FILE objects' write space members for write-buffered streams when the write(2) system call returns an error. \u00a0Depending on the nature of an application that calls libc's stdio functions and the presence of errors returned from the write(2) system call (or an overridden stdio write routine) a heap buffer overflow may occur. Such overflows may lead to data corruption or the execution of arbitrary code at the privilege level of the calling program."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-131", "description": "CWE-131 Incorrect Calculation of Buffer Size", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "shortName": "freebsd", "dateUpdated": "2023-12-14T10:06:25.798Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-23:15.stdio.asc"}, {"url": "https://security.netapp.com/advisory/ntap-20231214-0004/"}], "source": {"discovery": "UNKNOWN"}, "title": "libc stdio buffer overflow", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:14:25.137Z"}, "title": "CVE Program Container", "references": [{"tags": ["vendor-advisory", "x_transferred"], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-23:15.stdio.asc"}, {"url": "https://security.netapp.com/advisory/ntap-20231214-0004/", "tags": ["x_transferred"]}]}]}}

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{"affected": [{"affectedData": [{"defaultStatus": "unknown", "modules": ["libc"], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [{"lessThan": "p7", "status": "affected", "version": "12.4-RELEASE", "versionType": "release"}, {"lessThan": "p5", "status": "affected", "version": "13.2-RELEASE", "versionType": "release"}]}], "source": "secteam@freebsd.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*", "matchCriteriaId": "A7F6C8B0-9D75-476C-ADBA-754416FBC186", "versionEndExcluding": "12.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*", "matchCriteriaId": "BA49E374-9F1A-4F62-B88D-CD36EDEA6060", "versionEndExcluding": "13.2", "versionStartIncluding": "13.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:-:*:*:*:*:*:*", "matchCriteriaId": "24920B4D-96C0-401F-B679-BEB086760EAF", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:p1:*:*:*:*:*:*", "matchCriteriaId": "3CE32730-A9F5-4E8D-BDA4-6B8232F84787", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:p2:*:*:*:*:*:*", "matchCriteriaId": "552E81DE-D409-475F-8ED0-E10A0BE43D29", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:p3:*:*:*:*:*:*", "matchCriteriaId": "251CAE22-C3E6-45AD-8301-F36BEE5C6860", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:p4:*:*:*:*:*:*", "matchCriteriaId": "85D94BCA-FA32-4C10-95CD-5D2A69B38A7A", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:p5:*:*:*:*:*:*", "matchCriteriaId": "8C950F97-40B4-43BF-BB81-C49CE00A468B", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:p6:*:*:*:*:*:*", "matchCriteriaId": "8FFBAD22-5712-472D-ADAF-13DE0826F888", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:rc2-p1:*:*:*:*:*:*", "matchCriteriaId": "BA821886-B26B-47A6-ABC9-B8F70CE0ACFB", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:rc2-p2:*:*:*:*:*:*", "matchCriteriaId": "220629AD-32CC-4303-86AE-1DD27F0E4C65", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.2:-:*:*:*:*:*:*", "matchCriteriaId": "A87EFA20-DD6B-41C5-98FD-A29F67D2E732", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.2:p1:*:*:*:*:*:*", "matchCriteriaId": "2888B0C1-4D85-42EC-9696-03FAD0A9C28F", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.2:p2:*:*:*:*:*:*", "matchCriteriaId": "A3306F11-D3C0-41D6-BB5E-2ABDC3927715", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.2:p3:*:*:*:*:*:*", "matchCriteriaId": "9E584FE1-3A34-492B-B10F-508DA7CBA768", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.2:p4:*:*:*:*:*:*", "matchCriteriaId": "A5605E90-D125-4CC9-8B9F-F5EED9D4EE0C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In versions of FreeBSD 12.4-RELEASE prior to 12.4-RELEASE-p7 and FreeBSD 13.2-RELEASE prior to 13.2-RELEASE-p5 the __sflush() stdio function in libc does not correctly update FILE objects' write space members for write-buffered streams when the write(2) system call returns an error. \u00a0Depending on the nature of an application that calls libc's stdio functions and the presence of errors returned from the write(2) system call (or an overridden stdio write routine) a heap buffer overflow may occur. Such overflows may lead to data corruption or the execution of arbitrary code at the privilege level of the calling program."}, {"lang": "es", "value": "En las versiones 12.4-RELEASE anteriores a 12.4-RELEASE-p7 y 13.2-RELEASE anteriores a 13.2-RELEASE-p5 de FreeBSD, la funci\u00f3n stdio __sflush() en libc no actualiza correctamente los miembros del espacio de escritura de los objetos FILE para secuencias con b\u00fafer de escritura cuando la llamada al sistema write(2) devuelve un error. Dependiendo de la naturaleza de una aplicaci\u00f3n que llama a las funciones stdio de libc y la presencia de errores devueltos por la llamada al sistema write(2) (o una rutina de escritura stdio anulada), puede ocurrir un desbordamiento del buffer del heap. Dichos desbordamientos pueden provocar da\u00f1os en los datos o la ejecuci\u00f3n de c\u00f3digo arbitrario en el nivel de privilegio del programa que realiza la llamada."}], "id": "CVE-2023-5941", "lastModified": "2026-06-17T06:49:42.567", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-11-08T09:15:07.847", "references": [{"source": "secteam@freebsd.org", "tags": ["Vendor Advisory"], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-23:15.stdio.asc"}, {"source": "secteam@freebsd.org", "url": "https://security.netapp.com/advisory/ntap-20231214-0004/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-23:15.stdio.asc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20231214-0004/"}], "sourceIdentifier": "secteam@freebsd.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-131"}, {"lang": "en", "value": "CWE-787"}], "source": "secteam@freebsd.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-131"}, {"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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