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CVE-2022-2196

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CVE-2022-2196

Published: Jan 9, 2023

Modified: Feb 13, 2025

PUBLISHED

CVSS v3.1

5.8

MEDIUM

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'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

VendorProductVersions

Linux

Linux Kernel

affected
0 - < 2e7eab81425a
affected
0 - < 6.2

Weaknesses (CWE)

CWE-1188

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

Low

References

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