CVE-2022-28735 Affecting grub2-s390x-emu package, versions <2.04-150200.9.63.2


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-SLES152-GRUB2S390XEMU-2871134
  • published 15 Jun 2022
  • disclosed 14 Jun 2022

How to fix?

Upgrade SLES:15.2 grub2-s390x-emu to version 2.04-150200.9.63.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-s390x-emu package and not the grub2-s390x-emu package as distributed by SLES. See How to fix? for SLES:15.2 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.