CVE-2021-24031 — Vulnetix

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CVE-2021-24031 PUBLISHED

In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.

EPSS 0.07% · 22.2th percentile

Risk Scores

EPSS Score

0.07%

22.2th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:18.04:LTS	libzstd	1.3.2+dfsg2-1, 1.3.3+dfsg-1ubuntu1, 1.3.3+dfsg-2ubuntu1.1
Ubuntu:Pro:16.04:LTS	libzstd	0, 0.4.5-1, 0.5.1-1
Ubuntu:20.04:LTS	libzstd	0, 1.4.4+dfsg-1, 1.4.4+dfsg-3

Timeline

Feb 10, 2021 CVE Published
Apr 14, 2021 EPSS Score
Jun 22, 2021 EPSS Score
Aug 23, 2021 EPSS Score
Oct 24, 2021 EPSS Score
Jan 6, 2022 EPSS Score
Feb 4, 2022 EPSS Score
Feb 25, 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-2021-24031 third-party-advisory
https://ubuntu.com/security/notices/USN-4760-1 vendor-advisory
https://ubuntu.com/security/notices/USN-5720-1 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2021-24031 third-party-advisory

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