Inclusion of Functionality from Untrusted Control Sphere Affecting shim-ia32 package, versions <0:15.6-1.el8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL8-SHIMIA32-4044692
  • published9 Jun 2022
  • disclosed7 Jun 2022

Introduced: 7 Jun 2022

CVE-2022-28735  (opens in a new tab)
CWE-829  (opens in a new tab)

How to fix?

Upgrade RHEL:8 shim-ia32 to version 0:15.6-1.el8 or higher.
This issue was patched in RHSA-2022:5100.

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.

The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.

CVSS Scores

version 3.1