Expected Behavior Violation Affecting shim-ia32 package, versions <0:15-14.el8_2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.1% (43rd percentile)

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  • Snyk IDSNYK-RHEL8-SHIMIA32-3768901
  • published26 Jul 2021
  • disclosed29 Jul 2020

Introduced: 29 Jul 2020

CVE-2020-15705  (opens in a new tab)
CWE-440  (opens in a new tab)

How to fix?

Upgrade RHEL:8 shim-ia32 to version 0:15-14.el8_2 or higher.
This issue was patched in RHSA-2020:3216.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim-ia32 package and not the shim-ia32 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.

CVSS Scores

version 3.1