CVE-2021-24032
Summary
| CVE | CVE-2021-24032 |
|---|---|
| State | PUBLISHED |
| Assigner | |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-03-04 21:15:12 UTC |
| Updated | 2026-10-08 21:17:33 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 4.7 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.003480000 probability, percentile 0.264430000 (date 2026-10-10)
Problem Types: CWE-277 | CWE-276 | CWE-277 Insecure Inherited Permissions (CWE-277)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 4.7 | MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| 2.0 | [email protected] | Primary | 1.9 | AV:L/AC:M/Au:N/C:P/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
HighPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
MediumAuthentication
NoneConfidentiality
PartialIntegrity
NoneAvailability
NoneAV:L/AC:M/Au:N/C:P/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| #982519 - zstd: Race condition allows attacker to access world-readable destination file - Debian Bug report logs | af854a3a-2127-422b-91ae-364da2661108 | bugs.debian.org | Patch, Third Party Advisory |
| Race condition allows attacker to access world-readable destination file · Issue #2491 · facebook/zstd · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Issue Tracking, Patch, Third Party Advisory |
| af854a3a-2127-422b-91ae-364da2661108 | www.facebook.com | Third Party Advisory | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 174840 SUSE Enterprise Linux Security update for zstd (SUSE-SU-2021:0948-1)
- 174859 SUSE Enterprise Linux Security update for zstd (SUSE-SU-2021:0948-1)
- 180340 Debian Security Update for libzstd (CVE-2021-24032)
- 500836 Alpine Linux Security Update for zstd
- 504574 Alpine Linux Security Update for zstd
- 670502 EulerOS Security Update for zstd (EulerOS-SA-2021-2260)
- 670528 EulerOS Security Update for zstd (EulerOS-SA-2021-2286)
- 670732 EulerOS Security Update for zstd (EulerOS-SA-2021-2490)
- 750290 OpenSUSE Security Update for zstd (openSUSE-SU-2021:0481-1)
- 900210 CBL-Mariner Linux Security Update for zstd 1.4.4
- 900211 CBL-Mariner Linux Security Update for moby-containerd 1.4.4
- 903584 Common Base Linux Mariner (CBL-Mariner) Security Update for zstd (4698)