Vulnerability in Linux Kernel
CVE-2022-39189
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (27.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Linux Kernel
- NetApp Hci Baseboard Management Controller — versions h300s, h410c, h410s
Public proof-of-concept exploits
References
- bugs.chromium.org/p/project-zero/issues/detail (Patch, Third Party Advisory, Issue Tracking)
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17 (Patch, Release Notes, Vendor Advisory)
- github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736 (Patch, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- security.netapp.com/advisory/ntap-20230214-0007/ (Third Party Advisory)
- www.debian.org/security/2023/dsa-5480 (vendor-advisory, VDB Entry, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/10/msg00027.html (mailing-list)
Frequently asked questions
- What is CVE-2022-39189?
- CVE-2022-39189 is a high-severity vulnerability in Linux Kernel. CVSS score: 7.8/10. Published 2022-09-02.
- How severe is CVE-2022-39189?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2022-39189 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.