Privilege Defined With Unsafe Actions Affecting grub2-efi-aa64-cdboot package, versions <1:2.02-78.el8_1.1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL8-GRUB2EFIAA64CDBOOT-3655256
  • published26 Jul 2021
  • disclosed25 Nov 2019

Introduced: 25 Nov 2019

CVE-2019-14865  (opens in a new tab)
CWE-267  (opens in a new tab)

How to fix?

Upgrade RHEL:8 grub2-efi-aa64-cdboot to version 1:2.02-78.el8_1.1 or higher.
This issue was patched in RHSA-2020:0335.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-efi-aa64-cdboot package and not the grub2-efi-aa64-cdboot package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A flaw was found in the grub2-set-bootflag utility of grub2. A local attacker could run this utility under resource pressure (for example by setting RLIMIT), causing grub2 configuration files to be truncated and leaving the system unbootable on subsequent reboots.

CVSS Scores

version 3.1