medium4.9Public exploit code
CVE-2018-12904
In arch/x86/kvm/vmx.c in the Linux kernel before 4.17.2, when nested virtualization is used, local attackers could cause L1 KVM guests to VMEXIT, potentially a…
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- KVM (Nested Virtualization) - L1 Guest Privilege Escalation2018-06-25 · dos · linux · Verified
Impact
In arch/x86/kvm/vmx.c in the Linux kernel before 4.17.2, when nested virtualization is used, local attackers could cause L1 KVM guests to VMEXIT, potentially allowing privilege escalations and denial of service attacks due to lack of checking of CPL.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | before 4.17.2 |
| Canonical | Ubuntu Linux | Versions 16.04, 18.04 |
References
- NVD record
- CVE.org record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=727ba748e110b4de50d142edca9d6a9b7e6111d8
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1589
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.2
- https://github.com/torvalds/linux/commit/727ba748e110b4de50d142edca9d6a9b7e6111d8
- https://usn.ubuntu.com/3752-1/
- https://usn.ubuntu.com/3752-2/
- https://usn.ubuntu.com/3752-3/
- https://www.exploit-db.com/exploits/44944/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=727ba748e110b4de50d142edca9d6a9b7e6111d8
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1589
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.2
- https://github.com/torvalds/linux/commit/727ba748e110b4de50d142edca9d6a9b7e6111d8
- https://usn.ubuntu.com/3752-1/
- https://usn.ubuntu.com/3752-2/
- https://usn.ubuntu.com/3752-3/
- https://www.exploit-db.com/exploits/44944/