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."
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | 4.9.57 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4.13.4-2 |
| sid | Fixed | 4.13.4-2 |
| forky | Fixed | 4.13.4-2 |
| bullseye | Fixed | 4.13.4-2 |
| bookworm | Fixed | 4.13.4-2 |
References
- http://www.securityfocus.com/bid/101267
- https://access.redhat.com/errata/RHSA-2018:0395
- https://access.redhat.com/errata/RHSA-2018:0412
- https://bugzilla.redhat.com/show_bug.cgi?id=1500380
- https://patchwork.kernel.org/patch/9996579/
- https://patchwork.kernel.org/patch/9996587/
- https://www.suse.com/security/cve/CVE-2017-12188.html
- https://security-tracker.debian.org/tracker/CVE-2017-12188
CWEs
CWE-121 CWE-22
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.