Improper Locking Affecting container-tools:rhel8/slirp4netns package, versions <0:1.1.8-1.module_el8.5.0+2613+1b78b731


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.52% (78th percentile)

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  • Snyk IDSNYK-ALMALINUX8-CONTAINERTOOLS-5624596
  • published28 May 2023
  • disclosed15 Nov 2022

Introduced: 15 Nov 2022

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

How to fix?

Upgrade AlmaLinux:8 container-tools:rhel8/slirp4netns to version 0:1.1.8-1.module_el8.5.0+2613+1b78b731 or higher.
This issue was patched in ALSA-2021:4154.

NVD Description

Note: Versions mentioned in the description apply only to the upstream container-tools:rhel8/slirp4netns package and not the container-tools:rhel8/slirp4netns package as distributed by AlmaLinux. See How to fix? for AlmaLinux: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).

References

CVSS Scores

version 3.1