Access Restriction Bypass Affecting grub2-tools package, versions <1:2.02-0.29.el7


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL7-GRUB2TOOLS-4578941
  • published26 Jul 2021
  • disclosed17 Nov 2015

Introduced: 17 Nov 2015

CVE-2015-5281  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade RHEL:7 grub2-tools to version 1:2.02-0.29.el7 or higher.
This issue was patched in RHSA-2015:2401.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-tools package and not the grub2-tools package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The grub2 package before 2.02-0.29 in Red Hat Enterprise Linux (RHEL) 7, when used on UEFI systems, allows local users to bypass intended Secure Boot restrictions and execute non-verified code via a crafted (1) multiboot or (2) multiboot2 module in the configuration file or physically proximate attackers to bypass intended Secure Boot restrictions and execute non-verified code via the (3) boot menu.

CVSS Scores

version 3.1