Insecure Default Initialization of Resource Affecting kernel-rt-debug package, versions <0:4.18.0-477.10.1.rt7.274.el8_8


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELRTDEBUG-5628266
  • published28 May 2023
  • disclosed9 May 2023

Introduced: 9 May 2023

CVE-2022-2196  (opens in a new tab)
CWE-1188  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-rt-debug to version 0:4.18.0-477.10.1.rt7.274.el8_8 or higher.
This issue was patched in ALSA-2023:2736.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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

CVSS Scores

version 3.1