Description
A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-1422-1 | linux security update |
Debian DLA |
DLA-1422-2 | linux security update |
Debian DLA |
DLA-1423-1 | linux-4.9 new package |
EUVD |
EUVD-2018-2922 | A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest. |
Ubuntu USN |
USN-3777-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-3777-2 | Linux kernel (HWE) vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-05T07:46:47.491Z
Reserved: 2018-05-09T00:00:00.000Z
Link: CVE-2018-10853
No data.
Status : Modified
Published: 2018-09-11T14:29:01.630
Modified: 2024-11-21T03:42:08.677
Link: CVE-2018-10853
OpenCVE Enrichment
No data.
Debian DLA
EUVD
Ubuntu USN