Integer overflow in Webkitgtk Webkitgtk\+

CVE-2017-1000121

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…

Vulnerability class: Integer Overflow

EPSS: 0.012 (64.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-1000121?
CVE-2017-1000121 is a critical-severity vulnerability in Webkitgtk Webkitgtk\+, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-11-01.
How severe is CVE-2017-1000121?
Critical severity. CVSS v3 base score is 9.8 out of 10.