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

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 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-GRUB2POWERPCIEEE1275-2870873
  • published 15 Jun 2022
  • disclosed 14 Jun 2022
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Introduced: 14 Jun 2022

CVE-2021-3697 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 crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.