High severity7.8NVD Advisory· Published Oct 11, 2017· Updated Jun 17, 2026

CVE-2017-12188

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."

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Linux/Kernel2 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.6,<4.9.57
- (no CPE)range: <=4.13.5

Patches

Vulnerability mechanics

References

bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
patchwork.kernel.org/patch/9996579/nvdIssue TrackingPatchVendor Advisory
patchwork.kernel.org/patch/9996587/nvdIssue TrackingPatchVendor Advisory
www.securityfocus.com/bid/101267nvdThird Party AdvisoryVDB Entry
access.redhat.com/errata/RHSA-2018:0395nvdThird Party Advisory
access.redhat.com/errata/RHSA-2018:0412nvdThird Party Advisory

News mentions

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