CVE-2021-3752

high

Description

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.

References

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

https://security.netapp.com/advisory/ntap-20220318-0009/

https://www.oracle.com/security-alerts/cpujul2022.html

Details

Source: MITRE

Published: 2022-02-16

Updated: 2023-02-24

Type: CWE-416

Risk Information

CVSS v2

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

CVSS v3

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