Improper Locking Affecting criu-libs package, versions <0:3.15-3.module+el8.6.0+1054+50b00ff4


Severity

Recommended
0.0
medium
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.52% (78th percentile)

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  • Snyk IDSNYK-ROCKY8-CRIULIBS-3209156
  • published5 Jan 2023
  • 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 Rocky-Linux:8 criu-libs to version 0:3.15-3.module+el8.6.0+1054+50b00ff4 or higher.
This issue was patched in RLSA-2021:4154.

NVD Description

Note: Versions mentioned in the description apply only to the upstream criu-libs package and not the criu-libs package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux: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