CVE-2017-12188

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."

CVSS v3 7.8 HIGH
CVSS v2.0 6.9 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.1 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://www.securityfocus.com/bid/101267	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:0395	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0412	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1500380	Issue Tracking Patch Third Party Advisory
https://patchwork.kernel.org/patch/9996579/	Issue Tracking Patch Vendor Advisory
https://patchwork.kernel.org/patch/9996587/	Issue Tracking Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

02 Apr 2024, 18:05

Type	Values Removed	Values Added
References	~~() https://access.redhat.com/errata/RHSA-2018:0395 -~~	() https://access.redhat.com/errata/RHSA-2018:0395 - Third Party Advisory
References	~~() https://access.redhat.com/errata/RHSA-2018:0412 -~~	() https://access.redhat.com/errata/RHSA-2018:0412 - Third Party Advisory

Information

Published : 2017-10-11 15:29

Updated : 2024-04-02 18:05

NVD link : CVE-2017-12188

Mitre link : CVE-2017-12188

CVE.ORG link : CVE-2017-12188

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-121

Stack-based Buffer Overflow

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

{"id": "CVE-2017-12188", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.1}]}, "published": "2017-10-11T15:29:00.180", "references": [{"url": "http://www.securityfocus.com/bid/101267", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2018:0395", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2018:0412", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1500380", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://patchwork.kernel.org/patch/9996579/", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://patchwork.kernel.org/patch/9996587/", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-121"}]}, {"type": "Secondary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "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.\""}, {"lang": "es", "value": "arch/x86/kvm/mmu.c en el kernel de Linux hasta la versi\u00f3n 4.13.5, cuando se utiliza la virtualizaci\u00f3n anidada, no desv\u00eda las entradas de la tabla de p\u00e1gina invitada para resolver una direcci\u00f3n virtual invitada. Esto permite que los usuarios del sistema operativo invitado de la capa 1 ejecuten c\u00f3digo arbitrario en el sistema operativo del host o provoquen una denegaci\u00f3n de servicio (indexaci\u00f3n incorrecta durante el avance de p\u00e1gina y cierre inesperado del sistema operativo del host). Esto tambi\u00e9n se conoce como \"MMU potential stack buffer overrun\"."}], "lastModified": "2024-04-02T18:05:18.423", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F0E25B55-0789-46C4-B6CE-566CA50BB866", "versionEndExcluding": "4.9.57", "versionStartIncluding": "4.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0CD397D8-C278-45DC-A0B3-ABBC73A74ED7", "versionEndExcluding": "4.13.8", "versionStartIncluding": "4.10"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}