A salt security update has been released for both Debian GNU/Linux 9 and 10 to address a crash via a segmentation fault.

DSA 4676-1: salt security update

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Debian Security Advisory DSA-4676-1 security@debian.org
  https://www.debian.org/security/ Salvatore Bonaccorso
May 06, 2020   https://www.debian.org/security/faq
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Package : salt
CVE ID : CVE-2019-17361 CVE-2020-11651 CVE-2020-11652
Debian Bug : 949222 959684

Several vulnerabilities were discovered in salt, a powerful remote
execution manager, which could result in retrieve of user tokens from
the salt master, execution of arbitrary commands on salt minions,
arbitrary directory access to authenticated users or arbitrary code
execution on salt-api hosts.

For the oldstable distribution (stretch), these problems have been fixed
in version 2016.11.2+ds-1+deb9u3.

For the stable distribution (buster), these problems have been fixed in
version 2018.3.4+dfsg1-6+deb10u1.

We recommend that you upgrade your salt packages.

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

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