CVE-2023-2203: Red Hat Enterprise Linux

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A flaw was found in the WebKitGTK package. An improper input validation issue may lead to a use-after-free vulnerability. This flaw allows attackers with network access to pass specially crafted web content files, causing a denial of service or arbitrary code execution. This CVE exists because of a CVE-2023-28205 security regression for the WebKitGTK package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2.

Affected products

• Red Hat Enterprise Linux: version 8.0 only; version 9.0 only
• Red Hat Enterprise Linux Eus: version 8.8 only; version 9.2 only
• Red Hat Enterprise Linux Server Aus: version 8.8 only; version 9.2 only
• Red Hat Enterprise Linux Server Tus: version 8.8 only
• WebKitGTK WEBKIT2GTK3: version 2.38.5-1.el8 only; version 2.38.5-1.el9 only

Published 2023-05-17. Last modified 2026-06-17.