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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2785-1 linux-4.19 security update
Debian DLA Debian DLA DLA-2843-1 linux security update
EUVD EUVD EUVD-2021-26916 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.
Ubuntu USN Ubuntu USN USN-5070-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5071-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5071-2 Linux kernel (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-5071-3 Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN Ubuntu USN USN-5073-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5073-2 Linux kernel (GCP) vulnerabilities
Ubuntu USN Ubuntu USN USN-5073-3 Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN Ubuntu USN USN-5096-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5106-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5120-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-5299-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5343-1 Linux kernel vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 12 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00052}

epss

{'score': 0.00059}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:01:07.361Z

Reserved: 2021-06-21T00:00:00

Link: CVE-2021-3612

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-07-09T11:15:09.457

Modified: 2024-11-21T06:21:58.743

Link: CVE-2021-3612

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-06-20T12:28:00Z

Links: CVE-2021-3612 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses