Incorrect Default Permissions Affecting screen package, versions <5.0.1-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

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  • Snyk IDSNYK-ALPINE321-SCREEN-10165873
  • published14 May 2025
  • disclosed26 May 2025

Introduced: 14 May 2025

NewCVE-2025-46803  (opens in a new tab)
CWE-276  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 screen to version 5.0.1-r0 or higher.

NVD Description

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

The default mode of pseudo terminals (PTYs) allocated by Screen was changed from 0620 to 0622, thereby allowing anyone to write to any Screen PTYs in the system.

CVSS Base Scores

version 3.1