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CVE-2022-28735 Affecting grub2-x86_64-xen package, versions <2.04-150300.22.20.2

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.04% (6th percentile)
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NVD
7.8 high
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Red Hat
7.8 high
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SUSE
8.4 high

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  • Snyk ID SNYK-SLES153-GRUB2X8664XEN-2869527
  • published 14 Jun 2022
  • disclosed 13 Jun 2022
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Introduced: 13 Jun 2022

CVE-2022-28735 Open this link in a new tab

How to fix?

Upgrade SLES:15.3 grub2-x86_64-xen to version 2.04-150300.22.20.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-x86_64-xen package and not the grub2-x86_64-xen package as distributed by SLES. See How to fix? for SLES:15.3 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.

References