CVE-2022-39189

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.

7.8

CVSS

Severity: High

CVSS 3.1 •

EPSS 0.01%

Vendor Advisory debian.org Vendor Advisory kernel.org Vendor Advisory kernel.org

Affected: n/a n/a

References

Link	Tags
https://bugs.chromium.org/p/project-zero/issues/detail?id=2309	patch third party advisory issue tracking
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17	patch vendor advisory release notes
https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736	third party advisory patch
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cd88243c7e03845a450795e134b488fc2afb736	patch vendor advisory
https://security.netapp.com/advisory/ntap-20230214-0007/	third party advisory
https://www.debian.org/security/2023/dsa-5480	vendor advisory third party advisory vdb entry
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html	mailing list

Frequently Asked Questions

What is the severity of CVE-2022-39189?: CVE-2022-39189 has been scored as a high severity vulnerability.
How to fix CVE-2022-39189?: To fix CVE-2022-39189, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-39189 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-39189 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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