CVE-2022-2196

CVE Details

Release Date:	2023-01-09
Impact:	None	What is this?

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

See more information about CVE-2022-2196 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	8.8
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Changed
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2023-12255	2023-04-17
Oracle Linux version 7 (kernel-uek-container)	ELSA-2023-12256	2023-04-17
Oracle Linux version 8 (kernel)	ELSA-2023-2951	2023-05-23
Oracle Linux version 8 (kernel-uek)	ELSA-2023-12226	2023-04-04
Oracle Linux version 8 (kernel-uek)	ELSA-2023-12255	2023-04-17
Oracle Linux version 8 (kernel-uek-container)	ELSA-2023-12256	2023-04-17
Oracle Linux version 9 (kernel)	ELSA-2023-2458	2023-05-15
Oracle Linux version 9 (kernel-uek)	ELSA-2023-12226	2023-04-04