Debian Security Advisory

DLA-3063-1 systemd -- LTS security update

Date Reported:
30 Jun 2022
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 950732.
In Mitre's CVE dictionary: CVE-2020-1712.
More information:

A heap use-after-free vulnerability was found in systemd, a system and service manager, 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.

For Debian 9 stretch, this problem has been fixed in version 232-25+deb9u14.

We recommend that you upgrade your systemd packages.

For the detailed security status of systemd please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: