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vuln-nvd/data/2021/CVE-2021-3752.json
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use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."},{"lang":"es","value":"Se ha encontrado un fallo de uso de memoria previamente liberada en el subsistema Bluetooth del kernel de Linux en la forma en que las llamadas de usuario son conectadas al socket y son desconectadas simultáneamente debido a una condición de carrera. Este fallo permite a un usuario bloquear el sistema o escalar sus privilegios. La mayor amenaza de esta vulnerabilidad es para la confidencialidad, la integridad y la disponibilidad del sistema"}],"id":"CVE-2021-3752","lastModified":"2026-06-17T04:05:41.967","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"HIGH","cvssData":{"accessComplexity":"MEDIUM","accessVector":"ADJACENT_NETWORK","authentication":"NONE","availabilityImpact":"COMPLETE","baseScore":7.9,"confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","vectorString":"AV:A/AC:M/Au:N/C:C/I:C/A:C","version":"2.0"},"exploitabilityScore":5.5,"impactScore":10.0,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"HIGH","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":1.2,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2022-02-16T19:15:08.587","references":[{"source":"secalert@redhat.com","tags":["Issue Tracking","Third Party Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1999544"},{"source":"secalert@redhat.com","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"},{"source":"secalert@redhat.com","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"},{"source":"secalert@redhat.com","url":"https://lore.kernel.org/lkml/20211115165435.133245729%40linuxfoundation.org/"},{"source":"secalert@redhat.com","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20220318-0009/"},{"source":"secalert@redhat.com","tags":["Third Party Advisory"],"url":"https://www.debian.org/security/2022/dsa-5096"},{"source":"secalert@redhat.com","tags":["Exploit","Mailing List","Third Party Advisory"],"url":"https://www.openwall.com/lists/oss-security/2021/09/15/4"},{"source":"secalert@redhat.com","tags":["Patch","Third Party Advisory"],"url":"https://www.oracle.com/security-alerts/cpujul2022.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Third Party Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1999544"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","url":"https://lore.kernel.org/lkml/20211115165435.133245729%40linuxfoundation.org/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20220318-0009/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://www.debian.org/security/2022/dsa-5096"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Mailing List","Third Party Advisory"],"url":"https://www.openwall.com/lists/oss-security/2021/09/15/4"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"],"url":"https://www.oracle.com/security-alerts/cpujul2022.html"}],"sourceIdentifier":"secalert@redhat.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-416"}],"source":"secalert@redhat.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-362"}],"source":"nvd@nist.gov","type":"Primary"}]}
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