CVE-2021-3564medium
Description
A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system. This flaw affects all the Linux kernel versions starting from 3.13.
References
https://bugzilla.redhat.com/show_bug.cgi?id=1964139
http://www.openwall.com/lists/oss-security/2021/06/01/2
http://www.openwall.com/lists/oss-security/2021/05/25/1
https://www.openwall.com/lists/oss-security/2021/05/25/1
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
Details
Source: MITRE
Published: 2021-06-08
Updated: 2022-05-16
Type: CWE-415
Risk Information
CVSS v2
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
CVSS v3
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM