Vulnerability in Linux Kernel
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 allowing privilege escalations and denial of service attacks due to lack of checking of CPL.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.012 (66.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 16.04, 18.04
References
- usn.ubuntu.com/3752-2/ (vendor-advisory, Third Party Advisory)
- github.com/torvalds/linux/commit/727ba748e110b4de50d142edca9d6a9b7e6111d8 (Patch, Third Party Advisory)
- usn.ubuntu.com/3752-3/ (vendor-advisory, Third Party Advisory)
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.2 (Release Notes, Vendor Advisory)
- bugs.chromium.org/p/project-zero/issues/detail (Exploit, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- usn.ubuntu.com/3752-1/ (vendor-advisory, Third Party Advisory)
- www.exploit-db.com/exploits/44944/ (Exploit, VDB Entry, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2018-12904?
- CVE-2018-12904 is a medium-severity vulnerability in Linux Kernel. CVSS score: 4.9/10. Published 2018-06-27.
- How severe is CVE-2018-12904?
- Medium severity. CVSS v3 base score is 4.9 out of 10.