Incorrect Default Permissions Affecting libzstd package, versions <1.4.4+dfsg-3ubuntu0.1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-UBUNTU2004-LIBZSTD-1082292
  • published4 Mar 2021
  • disclosed4 Mar 2021

Introduced: 4 Mar 2021

CVE-2021-24031  (opens in a new tab)
CWE-276  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 libzstd to version 1.4.4+dfsg-3ubuntu0.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libzstd package and not the libzstd package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1