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CVE-2017-12188 Details

Description

arch/x86/kvm/mmu.c in the Linux kernel through 4.13.5, when nested virtualisation is used, does not properly traverse guest pagetable entries to resolve a guest virtual address, which allows L1 guest OS users to execute arbitrary code on the host OS or cause a denial of service (incorrect index during page walking, and host OS crash), aka an "MMU potential stack buffer overrun."

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://access.redhat.com/errata/RHSA-2018:0395	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0412	CVE	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1500380	CVE	Issue TrackingPatchThird Party Advisory
https://patchwork.kernel.org/patch/9996579/	CVE	Issue TrackingPatchVendor Advisory
https://patchwork.kernel.org/patch/9996587/	CVE	Issue TrackingPatchVendor Advisory
http://www.securityfocus.com/bid/101267	CVE	Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2018:0395	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0412	[email protected]	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1500380	[email protected]	Issue TrackingPatchThird Party Advisory
https://patchwork.kernel.org/patch/9996579/	[email protected]	Issue TrackingPatchVendor Advisory
https://patchwork.kernel.org/patch/9996587/	[email protected]	Issue TrackingPatchVendor Advisory
http://www.securityfocus.com/bid/101267	[email protected]	Third Party AdvisoryVDB Entry

see all 12 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-121	Stack-based Buffer Overflow	[email protected]
CWE-22	Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')	[email protected]

Affected Products

Product	Versions
linux linux kernel	>= 4.6, < 4.9.57 >= 4.10, < 4.13.8
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

11 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Apr 2, 2024	Modified Analysis	[email protected]
Feb 12, 2023	CVE Modified	[email protected]
Feb 2, 2023	CVE Modified	[email protected]
Oct 9, 2019	CVE Modified	[email protected]
Mar 8, 2018	CVE Modified	[email protected]
Nov 3, 2017	Initial Analysis	[email protected]
Oct 15, 2017	CVE Modified	[email protected]