Double Free Affecting ztunnel-1.25 package, versions <1.25.1-r2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.54% (44th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-ZTUNNEL125-14891273
  • published7 Jan 2026
  • disclosed13 May 2025

Introduced: 13 May 2025

CVE-2025-4574  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Chainguard ztunnel-1.25 to version 1.25.1-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ztunnel-1.25 package and not the ztunnel-1.25 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

In crossbeam-channel rust crate, the internal Channel type's Drop method has a race condition which could, in some circumstances, lead to a double-free that could result in memory corruption.

CVSS Base Scores

version 3.1