A large number of security issues were discovered in the WebKitGTK Web and
JavaScript engines. If a user were tricked into viewing a malicious
website, a remote attacker could exploit a variety of issues related to web
browser security, including cross-site scripting attacks, denial of service
attacks, and arbitrary code execution.
ubuntu.com/security/CVE-2021-21775
ubuntu.com/security/CVE-2021-21779
ubuntu.com/security/CVE-2021-30663
ubuntu.com/security/CVE-2021-30665
ubuntu.com/security/CVE-2021-30689
ubuntu.com/security/CVE-2021-30720
ubuntu.com/security/CVE-2021-30734
ubuntu.com/security/CVE-2021-30744
ubuntu.com/security/CVE-2021-30749
ubuntu.com/security/CVE-2021-30758
ubuntu.com/security/CVE-2021-30795
ubuntu.com/security/CVE-2021-30797
ubuntu.com/security/CVE-2021-30799
ubuntu.com/security/notices/USN-5024-1