Integer Overflow or Wraparound Affecting grub package, versions <2.06-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-ALPINE319-GRUB-6106593
  • published8 Dec 2023
  • disclosed29 Jul 2020

Introduced: 29 Jul 2020

CVE-2020-14308  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Alpine:3.19 grub to version 2.06-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub package and not the grub package as distributed by Alpine. See How to fix? for Alpine:3.19 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.

CVSS Scores

version 3.1