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Incomplete Blacklist Affecting grub2-powerpc-ieee1275 package, versions <2.04-9.34.1

0.0
high

Snyk CVSS

    Attack Complexity High
    Privileges Required High
    Scope Changed
    Confidentiality High
    Integrity High
    Availability High
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-SLES152-GRUB2POWERPCIEEE1275-2686398
  • published 14 Apr 2022
  • disclosed 2 Mar 2021
Report a new vulnerability Found a mistake?

Introduced: 2 Mar 2021

CVE-2020-14372 Open this link in a new tab
CWE-184 Open this link in a new tab

How to fix?

Upgrade SLES:15.2 grub2-powerpc-ieee1275 to version 2.04-9.34.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-powerpc-ieee1275 package and not the grub2-powerpc-ieee1275 package as distributed by SLES:15.2. See How to fix? for SLES:15.2 relevant fixed versions and status.

A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown variable content directly into memory. The table is further loaded and executed by the kernel, defeating its Secure Boot lockdown and allowing the attacker to load unsigned code. The highest threat from this vulnerability is to data confidentiality and integrity, as well as system availability.