UEFI Secure Boot Bypass Vulnerability in Linux Kernel

CVE-2018-18653 · HIGH Severity

AV:L/AC:L/AU:N/C:C/I:C/A:C

The Linux kernel, as used in Ubuntu 18.10 and when booted with UEFI Secure Boot enabled, allows privileged local users to bypass intended Secure Boot restrictions and execute untrusted code by loading arbitrary kernel modules. This occurs because a modified kernel/module.c, in conjunction with certain configuration options, leads to mishandling of the result of signature verification.

Learn more about our Cis Benchmark Audit For Distribution Independent Linux.