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CVE-2019-11922

Published: 25 July 2019

A race condition in the one-pass compression functions of Zstandard prior to version 1.3.8 could allow an attacker to write bytes out of bounds if an output buffer smaller than the recommended size was used.

Priority

Medium

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package Release Status
libzstd
Launchpad, Ubuntu, Debian
bionic
Released (1.3.3+dfsg-2ubuntu1.1)
disco Not vulnerable
(1.3.8+dfsg-2)
eoan Not vulnerable
(1.3.8+dfsg-2)
focal Not vulnerable
(1.3.8+dfsg-2)
groovy Not vulnerable
(1.3.8+dfsg-2)
hirsute Not vulnerable
(1.3.8+dfsg-2)
impish Not vulnerable
(1.3.8+dfsg-2)
jammy Not vulnerable
(1.3.8+dfsg-2)
kinetic Not vulnerable
(1.3.8+dfsg-2)
precise Does not exist

trusty Does not exist

upstream
Released (1.3.8+dfsg-2)
xenial
Released (1.3.1+dfsg-1~ubuntu0.16.04.1+esm2)
Patches:
upstream: https://github.com/facebook/zstd/commit/3e5cdf1b6a85843e991d7d10f6a2567c15580da0

Severity score breakdown

Parameter Value
Base score 8.1
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H