CVE-2025-64329

Publication date 7 November 2025

Last updated 25 June 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Description

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
containerd 26.04 LTS resolute
Not affected
25.10 questing
Fixed 1.7.24~ds1-8ubuntu1.1
25.04 plucky Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 1.6.24~ds1-1ubuntu1.3+esm2
22.04 LTS jammy
Fixed 1.6.12-0ubuntu1~22.04.10
20.04 LTS focal
Fixed 1.6.12-0ubuntu1~20.04.8+esm1
18.04 LTS bionic
Fixed 1.6.12-0ubuntu1~18.04.1+esm3
16.04 LTS xenial
Fixed 1.2.6-0ubuntu1~16.04.6+esm6
containerd-app 26.04 LTS resolute
Not affected
25.10 questing
Fixed 2.1.3-0ubuntu3.1
25.04 plucky Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 1.7.28-0ubuntu1~24.04.2
22.04 LTS jammy
Fixed 1.7.28-0ubuntu1~22.04.1+esm1
20.04 LTS focal
Fixed 1.7.24-0ubuntu1~20.04.2+esm1

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Notes

alexmurray

Traditionally the containerd source package contained both the library and docker application. However, in releases that contain the containerd-app source package, the containerd source package contains only the library whilst the docker application itself is contained in the containerd-app package.

Severity score breakdown

CVSS version:

Base score 6.9 · Medium

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Base score 5.5 · Medium

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-7983-1
    • containerd vulnerabilities
    • 29 January 2026

Other references

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