Description (CNA)
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."
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / Linux kernel | affected Linux kernel |
CWE
CWE-121
References
- https://access.redhat.com/errata/RHSA-2018:0412
- https://access.redhat.com/errata/RHSA-2018:0395
- https://patchwork.kernel.org/patch/9996587/
- https://patchwork.kernel.org/patch/9996579/
- http://www.securityfocus.com/bid/101267
- https://bugzilla.redhat.com/show_bug.cgi?id=1500380
ADP enrichment
No English description supplied.