High severity · published Sep 2, 2022
CVE-2022-39189
An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17
7.8
CVSS
0.3%
EPSS
No
On KEV
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.16 before 5.4.244; 5.5.0 before 5.10.180; 5.11 before 5.15.60; 5.16 before 5.18.17 · source: NVD
HB
Hci Baseboard Management Controller · Netapp
h300s; h410c; h410s; h500s; h700s · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39189
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-39189
Issue Tracking
https://bugs.chromium.org/p/project-zero/issues/detail?id=2309
Patch
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17
Patch
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cd88243c7e03845a450795e134b488fc2afb736
Patch
https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20230214-0007/
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