CVE-2021-3640

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A privileged local user could use this flaw to crash the system or escalate their privileges on the system."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo de uso de memoria previamente liberada en la funci\u00f3n sco_sock_sendmsg() del subsistema HCI del kernel de Linux en la forma en que el usuario llama a ioct UFFDIO_REGISTER o de otra manera desencadena una condici\u00f3n de carrera de la llamada sco_conn_del() junto con la llamada sco_sock_sendmsg() con la p\u00e1gina de memoria de fallo controlable esperada. Un usuario local privilegiado podr\u00eda usar este fallo para bloquear el sistema o escalar sus privilegios en el sistema"}], "lastModified": "2023-11-07T03:38:10.750", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "83024F84-4857-4CAF-957E-C14804BAC4AF", "versionEndExcluding": "4.4.293"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8B1EE39E-FE30-4B7D-A26F-631135BCBB3F", "versionEndExcluding": "4.9.291", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FCEB92FF-21BF-4F75-ACA1-6AE1D51A79FC", "versionEndExcluding": "4.14.256", "versionStartIncluding": "4.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4F85F433-5DEA-47D3-B07E-3B1AC474D6E0", "versionEndExcluding": "4.19.218", 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