Find real vulnerabilities before they ship
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."
Base Score
7.8
| Base Score | 7.8 |
|---|---|
| Vector String | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| Base Severity | High |
| Version | 3.1 |
| Attack Vector (AV) | LOCAL |
