CVE-2021-20291 — Vulnetix

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CVE-2021-20291 PUBLISHED

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).

EPSS 1.03% · 77.2th percentile

Risk Scores

EPSS Score

1.03%

77.2th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:20.04:LTS	golang-github-containers-storage	*, 0, 1.13.2+dfsg1-2

Timeline

Apr 1, 2021 CVE Published
Apr 14, 2021 EPSS Score
Apr 27, 2021 EPSS Score
Jun 22, 2021 EPSS Score
Oct 24, 2021 EPSS Score
Dec 25, 2021 EPSS Score
Jan 6, 2022 EPSS Score
Feb 4, 2022 EPSS Score
Apr 1, 2022 EPSS Score
Apr 28, 2022 EPSS Score
Jun 29, 2022 EPSS Score
Aug 31, 2022 EPSS Score

References

https://ubuntu.com/security/CVE-2021-20291 third-party-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1939485 third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2021-20291 third-party-advisory
https://github.com/containers/storage/commit/306fcabc964470e4b3b87a43a8f6b7d698209ee1 third-party-advisory

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