CVE-2021-24032

Description

Beginning in v1.4.1 and prior to v1.4.9, due to an incomplete fix for CVE-2021-24031, the Zstandard command-line utility created output files with default permissions and restricted those permissions immediately afterwards. Output files could therefore momentarily be readable or writable to unintended parties.

Categories

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.02%
Third-Party Advisory debian.org Third-Party Advisory github.com Third-Party Advisory facebook.com
Affected: Facebook Zstandard
Published at:
Updated at:

References

Link Tags
https://github.com/facebook/zstd/issues/2491 issue tracking third party advisory patch
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982519 third party advisory patch
https://www.facebook.com/security/advisories/cve-2021-24032 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-24032?
CVE-2021-24032 has been scored as a medium severity vulnerability.
How to fix CVE-2021-24032?
To fix CVE-2021-24032, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24032 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-24032 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24032?
CVE-2021-24032 affects Facebook Zstandard.
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