CVE-2022-2196

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

09/01/2023

Last modified:

13/02/2025

Description

A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn&#39;t need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or past commit 2e7eab81425a

Impact

Vector 3.x

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

Base Score: 5.80 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L

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

Base Score 3.x

5.80

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.4.47 (including)	5.4.233 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.6.19 (including)	5.7 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.7.3 (including)	5.10.170 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.96 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.14 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:::::::*

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

CVE-2022-2196

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools