Improper Locking in github.com/containers/storage

中 6.5CVE-2021-20291 · GHSA-7qw8-847f-pggm · GO-2021-0100 · 01/04/2021 公開 · 17/06/2026 更新

要点

CVE-2021-20291 は github.com/containers/storage, openshift container platform (redhat), storage (storage project) に影響する深刻度「中」 (CVSS 6.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.6%（全脆弱性の 75.6% より高い）。
対処：1.28.1 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
github.com/containers/storage Go	`< 1.28.1`	`1.28.1`
openshift container platform redhat	`= 4.0`	修正版なし
storage storage_project	`< 1.28.1`	`1.28.1`

概要

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).

NVD の説明

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).