{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T12:13:51.480","vulnerabilities":[{"cve":{"id":"CVE-2020-7453","sourceIdentifier":"secteam@freebsd.org","published":"2020-04-29T00:15:12.093","lastModified":"2024-11-21T05:37:10.490","vulnStatus":"Modified","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 comprobación de terminación null en la opción de configuración \"osrelease\" de jail_set puede devolver más 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."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","baseScore":6.0,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":0.8,"impactScore":5.2}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:M/Au:N/C:P/I:P/A:N","baseScore":3.3,"accessVector":"LOCAL","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"LOW","exploitabilityScore":3.4,"impactScore":4.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-754"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"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"}]}]}],"references":[{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc","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"]}]}}]}