What is CVE-2022-4744?

CVE-2022-4744 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2022-4744 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-4744?

CVE-2022-4744 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-4744?

No patch is currently available for CVE-2022-4744. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2022-4744 actively exploited?

CVE-2022-4744 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-4744

High

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.

Package Linux Kernel

Published 2023-03-30

Last modified 2025-02-14

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-460

CVE-2022-4744 is classified as CWE-460

See CWE-460 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2022-4744 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Packet Storm
http://packetstormsecurity.com/files/171912/CentOS-Stream-9-Missing-Kernel-Security-Fix.html

Third Party Advisory VDB Entry
Debian Security
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html

Mailing List Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20230526-0009/

Third Party Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=158b515f703e
Patch

Details

CVE ID CVE-2022-4744

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2023-03-30

Modified 2025-02-14

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2022-4744?

CVE-2022-4744 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2022-4744 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-4744?

CVE-2022-4744 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-4744?

No patch is currently available for CVE-2022-4744. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2022-4744 actively exploited?

No — CVE-2022-4744 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.