Improper Validation of Array Index Affecting rsync package, versions <0:3.4.0-1.amzn2023.0.3


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.33% (26th percentile)

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  • Snyk IDSNYK-AMZN2023-RSYNC-14432459
  • published17 Dec 2025
  • disclosed18 Nov 2025

Introduced: 18 Nov 2025

CVE-2025-10158  (opens in a new tab)
CWE-129  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 rsync to version 0:3.4.0-1.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2025-1302.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rsync package and not the rsync package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The

malicious

rsync client requires at least read access to the remote rsync module in order to trigger the issue.

CVSS Base Scores

version 3.1