Memory Leak Affecting containerd package, versions <1.6.12-0ubuntu1~20.04.8+esm1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.16% (6th percentile)

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  • Snyk IDSNYK-UBUNTU2004-CONTAINERD-13861058
  • published21 Mar 2026
  • disclosed7 Nov 2025

Introduced: 7 Nov 2025

CVE-2025-64329  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 containerd to version 1.6.12-0ubuntu1~20.04.8+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream containerd package and not the containerd package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

containerd is an open-source container runtime. Versions 1.7.28 and below, 2.0.0-beta.0 through 2.0.6, 2.1.0-beta.0 through 2.1.4, and 2.2.0-beta.0 through 2.2.0-rc.1 contain a bug in the CRI Attach implementation where a user can exhaust memory on the host due to goroutine leaks. This issue is fixed in versions 1.7.29, 2.0.7, 2.1.5 and 2.2.0. To workaround this vulnerability, users can set up an admission controller to control accesses to pods/attach resources.

CVSS Base Scores

version 3.1