CVE-2021-24031

Published: 10 February 2021

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.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
libzstd
Launchpad, Ubuntu, Debian
Upstream
Released (1.4.8+dfsg-1)
Ubuntu 21.10 (Impish Indri) Not vulnerable
(1.4.8+dfsg-1)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(1.4.8+dfsg-1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (1.4.4+dfsg-3ubuntu0.1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1.3.3+dfsg-2ubuntu1.2)
Ubuntu 16.04 ESM (Xenial Xerus) Needs triage

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://github.com/facebook/zstd/pull/1644/commits/3968160a916a759c3d3418da533e1b4f8b795343
Upstream: https://github.com/facebook/zstd/pull/1644/commits/af80f6dfacafcc2c916ecd57731107221e1f9986