CVE-2022-2196
Published:January 09, 2023
Updated:May 17, 2026
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
Affected Packages
linux-yocto (YOCTO):
Affected version(s) =4.9.3+gitAUTOINC+03a2d3f7f9_881cba95ae <4.10+gitAUTOINC+805ea440c7_b259a5d744Fix Suggestion:
Update to version 4.10+gitAUTOINC+805ea440c7_b259a5d744linux-yocto (YOCTO):
Affected version(s) >=4.8 <4.8.24+gitAUTOINC+c84532b647_f6329fd287Fix Suggestion:
Update to version 4.8.24+gitAUTOINC+c84532b647_f6329fd287linux-libc-headers (YOCTO):
Affected version(s) >=5.4 <5.14Fix Suggestion:
Update to version 5.14Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.8
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.8
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Initialization of a Resource with an Insecure Default
EPSS
Base Score:
0.03