A 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.
https://lore.kernel.org/lkml/[email protected]/
https://www.openwall.com/lists/oss-security/2021/09/15/4
https://bugzilla.redhat.com/show_bug.cgi?id=1999544
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
https://www.debian.org/security/2022/dsa-5096
Source: MITRE
Published: 2022-02-16
Updated: 2023-02-24
Type: CWE-416
Base Score: 7.9
Vector: AV:A/AC:M/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 5.5
Severity: HIGH
Base Score: 7.1
Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.2
Severity: HIGH