Integer Overflow and Buffer Overflow in UNIX IPC Layer of WebKitGTK+ (CVE-2021-30663)

CVE-2017-1000121 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The UNIX IPC layer in WebKit, including WebKitGTK+ prior to 2.16.3, does not properly validate message size metadata, allowing a compromised secondary process to trigger an integer overflow and subsequent buffer overflow in the UI process. This vulnerability does not affect Apple products.

Learn more about our Web App Pen Testing.