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CVE-2022-39189

Published: Sep 2, 2022Updated: May 5, 2025 Sources: CVE List NVD BDU csafNVD-CWE-noinfo
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.3%
Top 76.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

linux kernellinux
On-premOS
Operating Systems
hci baseboard management controllernetappHardware Firmware
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»ООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
linuxoss-projectOperating Systemsaka the linux kernel
netappcommercialUSHardware Firmware
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
and 6 more affected products View all →

Exploitability

Official Patch Available

References

https://bugs.chromium.org/p/project-zero/issues/detail?id=2309
bugs.chromium.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17
cdn.kernel.org
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cd88243c7e03845a450795e134b488fc2afb736
git.kernel.org
and 40 more references View all →

Timeline

Published
Sep 2, 2022
Last Updated
May 5, 2025

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