Improper Initialization Affecting rssh package, versions <2.3.4-r1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
4.7% (91st percentile)

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  • Snyk IDSNYK-ALPINE322-RSSH-10279352
  • published31 May 2025
  • disclosed6 Feb 2019

Introduced: 6 Feb 2019

CVE-2019-3464  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade Alpine:3.22 rssh to version 2.3.4-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rssh package and not the rssh package as distributed by Alpine. See How to fix? for Alpine:3.22 relevant fixed versions and status.

Insufficient sanitization of environment variables passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.

CVSS Base Scores

version 3.1