CVE-2021-24031

NameCVE-2021-24031
DescriptionIn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2573-1, DSA-4850-1
Debian Bugs981404

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libzstd (PTS)bullseye1.4.8+dfsg-2.1fixed
bookworm1.5.4+dfsg2-5fixed
sid, trixie1.5.6+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libzstdsourcestretch1.1.2-1+deb9u1DLA-2573-1
libzstdsourcebuster1.3.8+dfsg-3+deb10u1DSA-4850-1
libzstdsource(unstable)1.4.8+dfsg-1981404

Notes

https://github.com/facebook/zstd/issues/1630
Search for package or bug name: Reporting problems