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Out-of-bounds Write Affecting grub2-powerpc-ieee1275 package, versions <2.04-150200.9.63.2

0.0
medium

Snyk CVSS

    Attack Complexity High
    Privileges Required High
    Scope Changed
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NVD
4.5 medium
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SUSE
5 medium
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Red Hat
5 medium

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  • Snyk ID SNYK-SLES152-GRUB2POWERPCIEEE1275-2870752
  • published 15 Jun 2022
  • disclosed 14 Jun 2022
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Introduced: 14 Jun 2022

CVE-2021-3696 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade SLES:15.2 grub2-powerpc-ieee1275 to version 2.04-150200.9.63.2 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 heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.