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LIN1022-2701 : Security Advisory - linux - CVE-2022-2196

Created: Dec 16, 2022    Updated: Apr 6, 2023
Resolved Date: Mar 7, 2023
Found In Version: 10.22.33.1
Fix Version: 10.22.33.7
Severity: Standard
Applicable for: Wind River Linux LTS 22
Component/s: Kernel

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

https://nvd.nist.gov/vuln/detail/CVE-2022-2196

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