A salt security update has been released for Debian GNU/Linux 10 and 11.

DSA 5011-1: salt security update

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Debian Security Advisory DSA-5011-1 security@debian.org
  https://www.debian.org/security/ Markus Koschany
November 19, 2021   https://www.debian.org/security/faq
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Package : salt
CVE ID : CVE-2021-21996 CVE-2021-31607 CVE-2021-25284 CVE-2021-25283
CVE-2021-25282 CVE-2021-25281 CVE-2021-3197 CVE-2021-3148
CVE-2021-3144 CVE-2020-35662 CVE-2020-28972 CVE-2020-28243
Debian Bug : 983632 994016 987496

Multiple security vulnerabilities have been discovered in Salt, a powerful
remote execution manager, that allow for local privilege escalation on a
minion, server side template injection attacks, insufficient checks for eauth
credentials, shell and command injections or incorrect validation of SSL
certificates.

For the oldstable distribution (buster), this problem has been fixed
in version 2018.3.4+dfsg1-6+deb10u3.

For the stable distribution (bullseye), this problem has been fixed in
version 3002.6+dfsg1-4+deb11u1.

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/