Incorrect Default Permissions Affecting zstd package, versions <1.4.9-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-ALPINE321-ZSTD-8487440
  • published6 Dec 2024
  • disclosed4 Mar 2021

Introduced: 4 Mar 2021

CVE-2021-24032  (opens in a new tab)
CWE-276  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 zstd to version 1.4.9-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream zstd package and not the zstd package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

Beginning in v1.4.1 and prior to v1.4.9, due to an incomplete fix for CVE-2021-24031, the Zstandard command-line utility created output files with default permissions and restricted those permissions immediately afterwards. Output files could therefore momentarily be readable or writable to unintended parties.

CVSS Scores

version 3.1