CVEvulnerability

CVE-2018-12904

4.9 MEDIUM Published 2018-06-27 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-06-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
4.9 MEDIUM — CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS 2.0 ([email protected])
4.4 MEDIUM — AV:L/AC:M/Au:N/C:P/I:P/A:P

Description

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 configurations

• linux linux kernel (< 4.17.2) • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04

References