{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-03T03:50:35.633","vulnerabilities":[{"cve":{"id":"CVE-2021-29631","sourceIdentifier":"secteam@freebsd.org","published":"2021-08-30T18:15:08.923","lastModified":"2024-11-21T06:01:32.053","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious guest may cause the device model to operate on uninitialized I/O vectors leading to memory corruption, crashing of the bhyve process, and possibly arbitrary code execution in the bhyve process."},{"lang":"es","value":"En FreeBSD versiones 13.0-STABLE anteriores a n246941-20f96f215562, 12.2-STABLE anteriores a r370400, 11.4-STABLE anteriores a r370399, 13.0-RELEASE anteriores a p4, 12.2-RELEASE anteriores a p10, y 11.4-RELEASE anteriores a p13, determinados modelos de dispositivos basados en VirtIO en bhyve presentaban un fallo al manejar los errores cuando se obtenían descriptores de E/S. Un huésped malicioso puede causar al modelo de dispositivo operar en vectores de E/S no inicializados, conllevando a una corrupción de la memoria, un bloqueo del proceso bhyve y, posiblemente, una ejecución de código arbitrario en el proceso bhyve."}],"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:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:C/I:C/A:C","baseScore":7.2,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":3.9,"impactScore":10.0,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-908"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:*","matchCriteriaId":"4A865EA1-01D7-4E5A-9D13-80780F8A9D7A"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*","matchCriteriaId":"9FCA6A72-2A72-45FD-A43D-B5BF7C329121"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p10:*:*:*:*:*:*","matchCriteriaId":"C1E296FC-EFF0-4F78-9481-DF24A94279D5"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p11:*:*:*:*:*:*","matchCriteriaId":"3E550DC6-D276-4F68-A842-A39A4D525E11"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p12:*:*:*:*:*:*","matchCriteriaId":"04E8D3A9-9330-4DFE-9D6B-547C2D765EB7"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p13:*:*:*:*:*:*","matchCriteriaId":"EBBAD78B-A0CA-4A38-9BEC-62230DED4589"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:*","matchCriteriaId":"90F9B3CB-3B60-4AA8-9EAF-4F0BE7D27691"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:*","matchCriteriaId":"C04EE177-C7D1-4049-B680-F961A27C677F"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p4:*:*:*:*:*:*","matchCriteriaId":"218AF216-7B03-4C02-B55F-2316AF14074B"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p5:*:*:*:*:*:*","matchCriteriaId":"33266717-0359-4243-868B-B84436E2A89E"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p6:*:*:*:*:*:*","matchCriteriaId":"99965487-D5FD-4507-A43B-F241FEEA5237"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p7:*:*:*:*:*:*","matchCriteriaId":"050F0B6A-4674-45E9-A079-60A68CFA4D25"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p8:*:*:*:*:*:*","matchCriteriaId":"E71B99C2-EECE-43F9-A66E-CF4B3A94A57D"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:11.4:p9:*:*:*:*:*:*","matchCriteriaId":"C75EF084-153F-4418-AC4B-0C2EAA431243"},{"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:p10:*:*:*:*:*:*","matchCriteriaId":"8C2FC0BA-0116-43C2-A497-9157B1B9D55E"},{"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:12.2:p3:*:*:*:*:*:*","matchCriteriaId":"9F084CAB-D138-4BF6-ABC2-2314F0FDE0D1"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:12.2:p4:*:*:*:*:*:*","matchCriteriaId":"4C232CA9-FC15-4596-AA99-74509A714C12"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:12.2:p5:*:*:*:*:*:*","matchCriteriaId":"25BD9C03-6219-49EB-B503-CD44A3B9AA0A"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:12.2:p6:*:*:*:*:*:*","matchCriteriaId":"900755CC-07EF-4799-B5B4-F3762B3650E8"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:12.2:p7:*:*:*:*:*:*","matchCriteriaId":"0C33002B-9958-4714-A734-066F36DE9040"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:12.2:p8:*:*:*:*:*:*","matchCriteriaId":"562CEDBA-8BAE-4886-8AA3-AFF8E7F5A9C6"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:12.2:p9:*:*:*:*:*:*","matchCriteriaId":"37283D43-72DD-4FF9-BDBC-61B92051084B"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:13.0:-:*:*:*:*:*:*","matchCriteriaId":"174265E7-6B73-4546-B4C7-3826C7EB5624"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:13.0:p1:*:*:*:*:*:*","matchCriteriaId":"04A0E266-714C-4753-A652-A51F25582C78"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:13.0:p2:*:*:*:*:*:*","matchCriteriaId":"556111A1-C236-4DF6-9438-F9C874451A58"},{"vulnerable":true,"criteria":"c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Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20210923-0004/","source":"secteam@freebsd.org","tags":["Third Party Advisory"]},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-21:13.bhyve.asc","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20210923-0004/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}