A squid security update has been released for Debian GNU/Linux 10 to address multiple security issues, which could result in the bypass of security filters, information disclosure, the execution of arbitrary code or denial of service.

DSA 4682-1: squid security update

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Debian Security Advisory DSA-4682-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
May 08, 2020   https://www.debian.org/security/faq
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Package : squid
CVE ID : CVE-2019-12519 CVE-2019-12520 CVE-2019-12521 CVE-2019-12523
CVE-2019-12524 CVE-2019-12526 CVE-2019-12528 CVE-2019-18676
CVE-2019-18677 CVE-2019-18678 CVE-2019-18679 CVE-2020-8449
CVE-2020-8450 CVE-2020-11945

Multiple security issues were discovered in the Squid proxy caching
server, which could result in the bypass of security filters, information
disclosure, the execution of arbitrary code or denial of service.

For the stable distribution (buster), these problems have been fixed in
version 4.6-1+deb10u2.

We recommend that you upgrade your squid packages.

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

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/