CVE-2022-39189
HIGHCVSS 7.8/10EPSS 0.32%
Last modified
CVE-2022-39189 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.16, < 5.4.244 |
| Linux | Linux Kernel | >= 5.5.0, < 5.10.180 |
| Linux | Linux Kernel | >= 5.11, < 5.15.60 |
| Linux | Linux Kernel | >= 5.16, < 5.18.17 |
| Netapp | Hci Baseboard Management Controller | h300s |
| Netapp | Hci Baseboard Management Controller | h410c |
| Netapp | Hci Baseboard Management Controller | h410s |
| Netapp | Hci Baseboard Management Controller | h500s |
| Netapp | Hci Baseboard Management Controller | h700s |
References
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2309Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17Patch, Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230214-0007/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5480Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2309Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17Patch, Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230214-0007/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5480Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2022-39189?
CVE-2022-39189 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.
How do I fix CVE-2022-39189?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2022
- CVE-2022-39183Moodle Plugin - SAML Auth may allow Open Redirect through un…6.1
- CVE-2022-39184EXFO - BV-10 Performance Endpoint Unit authentication bypass…9.8
- CVE-2022-39185EXFO - BV-10 Performance Endpoint Unit Undocumented privileg…9.8
- CVE-2022-39186EXFO - BV-10 Performance Endpoint Unit misconfiguration. Sys…5.5
- CVE-2022-39187Rumpus - FTP server version 9.0.7.1 has a Reflected cross-si…6.1
- CVE-2022-39188An issue was discovered in include/asm-generic/tlb.h in the …4.7
- CVE-2022-3919The Jetpack CRM WordPress plugin before 5.4.3 does not sanit…4.8
- CVE-2022-39190An issue was discovered in net/netfilter/nf_tables_api.c in …5.5
- CVE-2022-39193An issue was discovered in the CheckUser extension for Media…5.3
- CVE-2022-39194An issue was discovered in the MediaWiki through 1.38.2. The…4.9
- CVE-2022-39195A cross-site scripting (XSS) vulnerability in the LISTSERV 1…6.1
- CVE-2022-39196Blackboard Learn 1.10.1 allows remote authenticated users to…6.5
Are you affected by CVE-2022-39189?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST