CVE-2021-3640 in Kernel

Resumen (Inglés)

A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.

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Reservar

2021-07-09

Divulgación

2022-03-04

Estado

Confirmado

Voces

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidad	CWE	Exp	Con	CVE
194173	Linux Kernel HCI sco_sock_sendmsg desbordamiento de búfer	416	No está definido	Arreglo oficial	CVE-2021-3640

Fuentes

• MITRE
• NVD
• CVE Details