CVE-2022-2977

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

14/09/2022

Last modified:

14/02/2023

Description

A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-free and create a situation where it may be possible to escalate 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::::::::	4.12 (including)	4.14.276 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.238 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.189 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.110 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.33 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.16.19 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.17 (including)	5.17.1 (excluding)

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

CVE-2022-2977

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools