CVE & CISA-KEV Catalog

CVE-2021-24032

MEDIUM
4.7
CVSS v3
NVD

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.

CWE-277CWE-276

How to fix

Remediation Available
libzstdDebian
Fixed in:1.4.8+dfsg-2CVE-2021-24032
Fixed in:1.4.8+dfsg-2CVE-2021-24032
Fixed in:1.4.8+dfsg-2CVE-2021-24032
Fixed in:1.4.8+dfsg-2CVE-2021-24032
libzstdUbuntu
Fixed in:1.3.1+dfsg-1~ubuntu0.16.04.1+esm3USN-5720-1
Fixed in:1.3.3+dfsg-2ubuntu1.2USN-4760-1
Fixed in:1.4.4+dfsg-3ubuntu0.1USN-4760-1
libzstd1Ubuntu
Fixed in:1.3.1+dfsg-1~ubuntu0.16.04.1+esm3USN-5720-1
Fixed in:1.3.3+dfsg-2ubuntu1.2USN-4760-1
Fixed in:1.4.4+dfsg-3ubuntu0.1USN-4760-1
zstdUbuntu
Fixed in:1.3.1+dfsg-1~ubuntu0.16.04.1+esm3USN-5720-1
Fixed in:1.3.3+dfsg-2ubuntu1.2USN-4760-1
Fixed in:1.4.4+dfsg-3ubuntu0.1USN-4760-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.35%probability of exploitation in 30 days
26thpercentile

Low risk: more likely to be exploited than 26% of all known CVEs.

References

Third-Party Advisory1
Embed a live status badge for CVE-2021-24032
CVE-2021-24032 severity badge

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.