Debian 9: DLA-2758-1 Critical: SSSD Shell Command Injection Threat

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:
https://security-tracker.debian.org/tracker/source-package/sssd

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