An openssl security update has been released for Debian GNU/Linux 9 LTS to address an issue where the c_rehash script does not properly sanitize shell meta characters to prevent command injection.

DLA 3008-1: openssl security update

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Debian LTS Advisory DLA-3008-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Stefano Rivera
May 14, 2022   https://wiki.debian.org/LTS
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Package : openssl
Version : 1.1.0l-1~deb9u6
CVE ID : CVE-2022-1292

The c_rehash script does not properly sanitise shell metacharacters to prevent
command injection. This script is executed by update-ca-certificates, from
ca-certificates, to re-hash certificates in /etc/ssl/certs/. An attacker able
to place files in this directory could execute arbitrary commands with the
privileges of the script.

For Debian 9 stretch, this problem has been fixed in version
1.1.0l-1~deb9u6.

We recommend that you upgrade your openssl packages.

For the detailed security status of openssl please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/openssl

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