A libproxy security update has been released for Debian GNU/Linux 10 to address two vulnerabilities.

DSA 4800-1: libproxy security update

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Debian Security Advisory DSA-4800-1 security@debian.org
  https://www.debian.org/security/ Salvatore Bonaccorso
November 28, 2020   https://www.debian.org/security/faq
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Package : libproxy
CVE ID : CVE-2020-25219 CVE-2020-26154
Debian Bug : 968366 971394

Two vulnerabilities were discovered in libproxy, an automatic proxy
configuration management library, which could result in denial of
service, or possibly, execution of arbitrary code.

For the stable distribution (buster), these problems have been fixed in
version 0.4.15-5+deb10u1.

We recommend that you upgrade your libproxy packages.

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

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/