Rapid7 Vulnerability & Exploit Database

Alma Linux: CVE-2021-20291: Moderate: podman security and bug fix update (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Alma Linux: CVE-2021-20291: Moderate: podman security and bug fix update (Multiple Advisories)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
04/01/2021
Created
05/05/2022
Added
05/04/2022
Modified
04/19/2024

Description

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).

Solution(s)

  • alma-upgrade-buildah
  • alma-upgrade-buildah-tests
  • alma-upgrade-podman
  • alma-upgrade-podman-docker
  • alma-upgrade-podman-gvproxy
  • alma-upgrade-podman-plugins
  • alma-upgrade-podman-remote
  • alma-upgrade-podman-tests
  • alma-upgrade-skopeo
  • alma-upgrade-skopeo-tests

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;