A webkit2gtk security update has been released for Debian GNU/Linux 10 and 11 to address multiple vulnerabilities.

DSA 5060-1: webkit2gtk security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-5060-1 security@debian.org
  https://www.debian.org/security/ Alberto Garcia
January 25, 2022   https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : webkit2gtk
CVE ID : CVE-2021-30934 CVE-2021-30936 CVE-2021-30951 CVE-2021-30952
CVE-2021-30953 CVE-2021-30954 CVE-2021-30984

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

CVE-2021-30934

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

CVE-2021-30936

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

CVE-2021-30951

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

CVE-2021-30952

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

CVE-2021-30953

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

CVE-2021-30954

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

CVE-2021-30984

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

For the oldstable distribution (buster), these problems have been fixed
in version 2.34.4-1~deb10u1.

For the stable distribution (bullseye), these problems have been fixed in
version 2.34.4-1~deb11u1.

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/