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CVE-2021-24032

Published: 20 February 2021

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.

Priority

Medium

Cvss 3 Severity Score

4.7

Score breakdown

Status

Package Release Status
libzstd
Launchpad, Ubuntu, Debian
bionic
Released (1.3.3+dfsg-2ubuntu1.2)
focal
Released (1.4.4+dfsg-3ubuntu0.1)
hirsute
Released (1.4.8+dfsg-2build1)
impish
Released (1.4.8+dfsg-2build1)
jammy
Released (1.4.8+dfsg-2build1)
lunar
Released (1.4.8+dfsg-2build1)
trusty Does not exist

upstream
Released (1.4.8+dfsg-2)
xenial
Released (1.3.1+dfsg-1~ubuntu0.16.04.1+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
groovy
Released (1.4.5+dfsg-4ubuntu0.1)
kinetic
Released (1.4.8+dfsg-2build1)
Patches:
upstream: https://github.com/felixhandte/zstd/commit/a774c5797399040af62db21d8a9b9769e005430e

Severity score breakdown

Parameter Value
Base score 4.7
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N