CVE-2021-3612

high

Description

An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

References

https://lore.kernel.org/linux-input/[email protected]/

https://bugzilla.redhat.com/show_bug.cgi?id=1974079

https://lists.fedoraproject.org/archives/list/[email protected]/message/YKGI562LFV5MESTMVTCG5RORSBT6NGBN/

https://security.netapp.com/advisory/ntap-20210805-0005/

https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html

https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html

Details

Source: MITRE

Published: 2021-07-09

Updated: 2022-04-25

Type: CWE-787

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH