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Integer Overflow or Wraparound Affecting grub2 package, versions <2.04-9.7.1

0.0
medium

Snyk CVSS

    Attack Complexity High
    Privileges Required High
    Confidentiality High
    Integrity High
    Availability High
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NVD
6.4 medium
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Red Hat
6.4 medium
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SUSE
6.4 medium

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  • Snyk ID SNYK-SLES152-GRUB2-2705625
  • published 14 Apr 2022
  • disclosed 29 Jul 2020
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Introduced: 29 Jul 2020

CVE-2020-14308 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade SLES:15.2 grub2 to version 2.04-9.7.1 or higher.

NVD Description

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

In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requested allocation size. This leads the function to return invalid memory allocations which can be further used to cause possible integrity, confidentiality and availability impacts during the boot process.