Improper Locking Affecting skopeo package, versions <1:1.4.2-0.1.0.1.module+el8.5.0+20416+d687fed7


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.52% (78th percentile)

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  • Snyk IDSNYK-ORACLE8-SKOPEO-2592443
  • published10 Apr 2022
  • 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?

Upgrade Oracle:8 skopeo to version 1:1.4.2-0.1.0.1.module+el8.5.0+20416+d687fed7 or higher.
This issue was patched in ELSA-2021-4154.

NVD Description

Note: Versions mentioned in the description apply only to the upstream skopeo package and not the skopeo package as distributed by Oracle. See How to fix? for Oracle:8 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 Scores

version 3.1