CVE-2020-7453

{"containers": {"cna": {"affected": [{"product": "FreeBSD", "vendor": "n/a", "versions": [{"status": "affected", "version": "12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, 11.3-RELEASE before 11.3-RELEASE-p7"}]}], "descriptions": [{"lang": "en", "value": "In FreeBSD 12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, and 11.3-RELEASE before 11.3-RELEASE-p7, a missing null termination check in the jail_set configuration option \"osrelease\" may return more bytes with a subsequent jail_get system call allowing a malicious jail superuser with permission to create nested jails to read kernel memory."}], "problemTypes": [{"descriptions": [{"description": "Improper Null Termination", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-04-28T23:36:45.000Z", "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "shortName": "freebsd"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secteam@freebsd.org", "ID": "CVE-2020-7453", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "FreeBSD", "version": {"version_data": [{"version_value": "12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, 11.3-RELEASE before 11.3-RELEASE-p7"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In FreeBSD 12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, and 11.3-RELEASE before 11.3-RELEASE-p7, a missing null termination check in the jail_set configuration option \"osrelease\" may return more bytes with a subsequent jail_get system call allowing a malicious jail superuser with permission to create nested jails to read kernel memory."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Improper Null Termination"}]}]}, "references": {"reference_data": [{"name": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc", "refsource": "CONFIRM", "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T09:25:49.043Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc"}]}]}, "cveMetadata": {"assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "assignerShortName": "freebsd", "cveId": "CVE-2020-7453", "datePublished": "2020-04-28T23:36:45.000Z", "dateReserved": "2020-01-21T00:00:00.000Z", "dateUpdated": "2024-08-04T09:25:49.043Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "FreeBSD", "vendor": "n/a", "versions": [{"status": "affected", "version": "12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, 11.3-RELEASE before 11.3-RELEASE-p7"}]}], "source": "secteam@freebsd.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*", "matchCriteriaId": "F35957CE-AF9F-40CA-BDD1-FA6A0E73783F", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*", "matchCriteriaId": "EA929713-B797-494A-853D-C121D9D69519", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*", "matchCriteriaId": "3C3D8EDC-91D3-45B2-AC1D-EF4346D4A714", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p3:*:*:*:*:*:*", "matchCriteriaId": "EA5006FF-06A5-4D95-BF5B-29F26248D11F", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p4:*:*:*:*:*:*", "matchCriteriaId": "A705031B-FD63-4076-B92E-E826E11D7111", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p5:*:*:*:*:*:*", "matchCriteriaId": "11C1EFB1-68E5-45F4-A7E1-744574F290D1", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p6:*:*:*:*:*:*", "matchCriteriaId": "25F649A7-9265-4552-8934-BCE083363982", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*", "matchCriteriaId": "BD730B6A-F123-4685-ACB3-4F20AAAB77F3", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p1:*:*:*:*:*:*", "matchCriteriaId": "508150E3-2C0C-4EEB-BFC9-BB5CEB404C06", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*", "matchCriteriaId": "B5D692EF-A5D7-430E-91BA-4CD137343B66", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In FreeBSD 12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, and 11.3-RELEASE before 11.3-RELEASE-p7, a missing null termination check in the jail_set configuration option \"osrelease\" may return more bytes with a subsequent jail_get system call allowing a malicious jail superuser with permission to create nested jails to read kernel memory."}, {"lang": "es", "value": "En FreeBSD versiones 12.1-ESTABLE anteriores a r359021, versiones 12.1-RELEASE anteriores a 12.1-RELEASE-p3, versiones 11.3-ESTABLE anteriores a r359020 y versiones 11.3-RELEASE anteriores a 11.3-RELEASE-p7, una falta de comprobaci\u00f3n de terminaci\u00f3n null en la opci\u00f3n de configuraci\u00f3n \"osrelease\" de jail_set puede devolver m\u00e1s bytes con una llamada posterior al sistema jail_get que permite a un superusuario de jaula (jail) malicioso con permiso para crear jaulas (jails) anidadas leer la memoria del kernel."}], "id": "CVE-2020-7453", "lastModified": "2026-06-17T03:24:48.703", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 3.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-04-29T00:15:12.093", "references": [{"source": "secteam@freebsd.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc"}], "sourceIdentifier": "secteam@freebsd.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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