Improper Locking Affecting podman package, versions <3.4.4-150300.9.3.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.42% (75th percentile)

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  • Snyk IDSNYK-SLES153-PODMAN-2636677
  • published14 Apr 2022
  • disclosed25 Feb 2022

Introduced: 25 Feb 2022

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

How to fix?

Upgrade SLES:15.3 podman to version 3.4.4-150300.9.3.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream podman package and not the podman package as distributed by SLES. See How to fix? for SLES:15.3 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