CVE-2021-24032

Name	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-4859-1
Debian Bugs	982519

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libzstd (PTS)	bullseye	1.4.8+dfsg-2.1	fixed
	bookworm	1.5.4+dfsg2-5	fixed
	sid, trixie	1.5.6+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
libzstd	source	stretch	(not affected)
libzstd	source	buster	1.3.8+dfsg-3+deb10u2	DSA-4859-1
libzstd	source	(unstable)	1.4.8+dfsg-2		982519

[stretch] - libzstd <not-affected> (Incomplete fix for CVE-2021-24031 not applied)
https://github.com/facebook/zstd/issues/2491