DescriptionBeginning 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow
Debian Bugs982519

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libzstd (PTS)stretch1.1.2-1fixed
stretch (security)1.1.2-1+deb9u1fixed
buster, buster (security)1.3.8+dfsg-3+deb10u2fixed
bullseye, sid1.4.8+dfsg-2.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libzstdsourcestretch(not affected)


[stretch] - libzstd <not-affected> (Incomplete fix for CVE-2021-24031 not applied)

Search for package or bug name: Reporting problems