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


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (24th 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 Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-RHEL8-SYSTEMDTESTS-3661921
  • 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 RHEL:8 systemd-tests to version 0:239-18.el8_1.4 or higher.
This issue was patched in RHSA-2020:0575.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd-tests package and not the systemd-tests package as distributed by RHEL. See How to fix? for RHEL: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 Scores

version 3.1