RHSA-2021:4097 — Security Advisory
Red Hat Security Advisory: webkit2gtk3 security and bug fix update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · November 2, 2021
Updated · November 22, 2025
Topic
An update for webkit2gtk3 is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.
Security Fix(es):
- webkitgtk: Use-after-free leading to arbitrary code execution (CVE-2021-30858)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
- WebProcess::initializeWebProcess crashing on aarch64 (BZ#2010825)