CVE-2017-12188
High
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."
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedOct 11, 2017
First seenOct 11, 2017
Weakness typeCWE-121CWE-121
How to fix
Update
- linux linux_kernel4.9.57, 4.13.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.6 ≤ v < 4.9.57, 4.10 ≤ v < 4.13.8 | 4.9.57, 4.13.8 |
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