An issue was discovered in certain Apple products. iOS before 11.2 is affected. tvOS before 11.2 is affected. watchOS before 4.2 is affected. The issue involves the "IOSurface" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.
http://packetstormsecurity.com/files/153148/Safari-Webkit-Proxy-Object-Type-Confusion.html
http://www.securityfocus.com/bid/102134
http://www.securitytracker.com/id/1039952
http://www.securitytracker.com/id/1039953
https://support.apple.com/HT208325
https://support.apple.com/HT208327
Source: MITRE
Published: 2017-12-25
Updated: 2019-06-02
Type: CWE-119
Base Score: 9.3
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 8.6
Severity: HIGH
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH