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.
Score: 1.5
Priority: P4 - Informational (Low)
Score: 0.00647
Percentile:
0.69798
CVSS v3.1 Score: 9.8
Severity: CRITICAL