Debian Security Advisory

DLA-2758-1 sssd -- LTS security update

Date Reported:
15 Sep 2021
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2021-3621.
More information:

One security issue has been discovered in sssd.

The sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

For Debian 9 stretch, this problem has been fixed in version 1.15.0-3+deb9u2.

We recommend that you upgrade your sssd packages.

For the detailed security status of sssd 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: