A webkit2gtk security update has been released for Debian GNU/Linux 10 to address multiple vulnerabilities.

DSA 4797-1: webkit2gtk security update

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Debian Security Advisory DSA-4797-1 security@debian.org
  https://www.debian.org/security/ Alberto Garcia
November 23, 2020   https://www.debian.org/security/faq
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Package : webkit2gtk
CVE ID : CVE-2020-9948 CVE-2020-9951 CVE-2020-9983 CVE-2020-13584

The following vulnerabilities have been discovered in the webkit2gtk
web engine:

CVE-2020-9948

Brendan Draper discovered that processing maliciously crafted web
content may lead to arbitrary code execution.

CVE-2020-9951

Marcin Noga discovered that processing maliciously crafted web
content may lead to arbitrary code execution.

CVE-2020-9983

zhunki discovered that processing maliciously crafted web content
may lead to code execution.

CVE-2020-13584

Cisco discovered that processing maliciously crafted web content
may lead to arbitrary code execution.

For the stable distribution (buster), these problems have been fixed in
version 2.30.3-1~deb10u1.

We recommend that you upgrade your webkit2gtk packages.

For the detailed security status of webkit2gtk please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/webkit2gtk

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/