CVE-2022-4744

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

30/03/2023

Last modified:

14/02/2025

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.136 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.12 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-4744

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools