vulnerability
Red Hat: CVE-2021-3640: use-after-free vulnerability in function sco_sock_sendmsg() (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:N/C:C/I:C/A:C) | 2022-03-03 | 2022-11-09 | 2025-03-17 |
Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
2022-03-03
Added
2022-11-09
Modified
2025-03-17
Description
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.
Solution(s)
redhat-upgrade-kernelredhat-upgrade-kernel-rt
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