CVE-2021-24032
First published: Fri Feb 12 2021(Updated: )
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.
Credit: cve-assign@fb.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Facebook Zstandard | >=1.4.1<1.4.9 | |
| redhat/zstd | <1.4.9 | 1.4.9 |
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Reference Links
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982519
- https://github.com/facebook/zstd/issues/2491
- https://www.facebook.com/security/advisories/cve-2021-24032
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1928092
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1928091
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1928093
- https://access.redhat.com/errata/RHSA-2024:3527
- https://bugzilla.redhat.com/show_bug.cgi?id=1928090
Frequently Asked Questions
What is CVE-2021-24032?
CVE-2021-24032 is a vulnerability in the Zstandard command-line utility that creates output files with default permissions, which could momentarily make them readable or writable to unintended users.
What is the severity of CVE-2021-24032?
CVE-2021-24032 has a severity score of 4.7, which is classified as medium.
How does CVE-2021-24032 affect Facebook Zstandard?
CVE-2021-24032 affects Facebook Zstandard versions between 1.4.1 and 1.4.9.
Are there any known fixes for CVE-2021-24032?
Yes, updating to Facebook Zstandard version 1.4.9 or later fixes the vulnerability.
Where can I find more information about CVE-2021-24032?
You can find more information about CVE-2021-24032 on the Debian bug report, GitHub issue, and Facebook security advisory.
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