Improper Locking Affecting runc package, versions <0:1.0.2-1.module+el8.5.0+12582+56d94c81


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.52% (78th percentile)

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  • Snyk IDSNYK-CENTOS8-RUNC-2129397
  • published26 Jul 2021
  • 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 Centos:8 runc to version 0:1.0.2-1.module+el8.5.0+12582+56d94c81 or higher.

NVD Description

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