CVE-2021-24032

MEDIUM4.7EPSS 0.02%

libzstd - security update

Published: 3/4/2021Modified: 3/9/2026

Also known as:DSA-4859-1ALPINE-CVE-2021-24032DEBIAN-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.

Affected packages (3)

Alpine/zstdfrom 0, < 1.4.9-r0
Debian/libzstdfrom 0, < 1.4.8+dfsg-2
Debian/libzstdfrom 0, < 1.3.8+dfsg-3+deb10u2

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM4.7	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References (2)

ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2021-24032
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-24032