A crmsh security update has been released for Debian GNU/Linux 9 LTS to address an issue where local attackers can execute commands via shell code injection to the "crm history" command-line tool, potentially allowing escalation of privileges.

DLA 2533-1: crmsh security update

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Debian LTS Advisory DLA-2533-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
January 25, 2021   https://wiki.debian.org/LTS
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Package : crmsh
Version : 2.3.2-4+deb9u1
CVE ID : CVE-2020-35459

It was discovered that there was an in issue in the command-line tool
for the Pacemaker High Availability stack. Local attackers were able
to execute commands via shell code injection to the "crm history"
command-line tool, potentially allowing escalation of privileges.

For Debian 9 "Stretch", this problem has been fixed in version
2.3.2-4+deb9u1.

We recommend that you upgrade your crmsh packages.

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

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