CVE-2017-12188

CVSS V2 Medium 6.9 CVSS V3 High 7.8
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."
Overview
  • CVE ID
  • CVE-2017-12188
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2017-10-11T15:29:00
  • Last Modified Date
  • 2023-02-12T23:27:30
Weakness Enumerations
CWE URL
CWE-121 http://cwe.mitre.org/data/definitions/121.html
CWE-22 http://cwe.mitre.org/data/definitions/22.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.13.5
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.1
  • Impact Score
  • 6
References
Reference URL Reference Tags
http://www.securityfocus.com/bid/101267 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:0395
https://access.redhat.com/errata/RHSA-2018:0412
https://access.redhat.com/security/cve/CVE-2017-12188
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2017-12188
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12188
History
Created Old Value New Value Data Type Notes
2022-05-10 18:47:43 Added to TrackCVE
2022-12-02 21:51:14 2017-10-11T15:29Z 2017-10-11T15:29:00 CVE Published Date updated
2022-12-02 21:51:14 2018-03-08T02:29:00 CVE Modified Date updated
2022-12-02 21:51:14 Modified Vulnerability Status updated
2023-02-02 22:07:24 2023-02-02T21:17:32 CVE Modified Date updated
2023-02-02 22:07:25 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." The Linux kernel built with the KVM visualization support (CONFIG_KVM), with nested visualization(nVMX) feature enabled (nested=1), was vulnerable to a stack buffer overflow issue. The vulnerability could occur while traversing guest page table entries to resolve guest virtual address(gva). An L1 guest could use this flaw to crash the host kernel resulting in denial of service (DoS) or potentially execute arbitrary code on the host to gain privileges on the system. Description updated
2023-02-02 22:07:27 References updated
2023-02-13 01:07:15 2023-02-12T23:27:30 CVE Modified Date updated
2023-02-13 01:07:15 Weakness Enumeration update
2023-02-13 01:07:16 The Linux kernel built with the KVM visualization support (CONFIG_KVM), with nested visualization(nVMX) feature enabled (nested=1), was vulnerable to a stack buffer overflow issue. The vulnerability could occur while traversing guest page table entries to resolve guest virtual address(gva). An L1 guest could use this flaw to crash the host kernel resulting in denial of service (DoS) or potentially execute arbitrary code on the host to gain privileges on the system. 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." Description updated