Use After Free Affecting systemd package, versions <0:239-18.el8_1.4


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.46% (37th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS8-SYSTEMD-2021828
  • published26 Jul 2021
  • disclosed5 Feb 2020

Introduced: 5 Feb 2020

CVE-2020-1712  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:8 systemd to version 0:239-18.el8_1.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.

CVSS Base Scores

version 3.1