Use After Free Affecting systemd package, versions <244.2-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.05% (25th percentile)

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  • Snyk IDSNYK-DEBIAN12-SYSTEMD-1560282
  • published5 Feb 2020
  • disclosed31 Mar 2020

Introduced: 5 Feb 2020

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

How to fix?

Upgrade Debian:12 systemd to version 244.2-1 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 Debian. See How to fix? for Debian:12 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