Improper Locking Affecting golang-github-containers-storage package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.11% (31st percentile)

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  • Snyk IDSNYK-UBUNTU2004-GOLANGGITHUBCONTAINERSSTORAGE-1090857
  • published25 Jun 2025
  • disclosed1 Apr 2021

Introduced: 1 Apr 2021

CVE-2021-20291  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:20.04 golang-github-containers-storage.

NVD Description

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

A deadlock vulnerability was found in 'github.com/containers/storage' in versions before 1.28.1. When a container image is processed, each layer is unpacked using tar. If one of those layers is not a valid tar archive this causes an error leading to an unexpected situation where the code indefinitely waits for the tar unpacked stream, which never finishes. An attacker could use this vulnerability to craft a malicious image, which when downloaded and stored by an application using containers/storage, would then cause a deadlock leading to a Denial of Service (DoS).

CVSS Base Scores

version 3.1