An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iCloud before 7.5 on Windows is affected. iTunes before 12.7.5 on Windows is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code via a crafted web site that leverages a getWasmBufferFromValue out-of-bounds read during WebAssembly compilation.
http://www.securitytracker.com/id/1041029
https://bugs.chromium.org/p/project-zero/issues/detail?id=1545
https://security.gentoo.org/glsa/201808-04
https://support.apple.com/HT208848
https://support.apple.com/HT208850
https://support.apple.com/HT208851
https://support.apple.com/HT208852
https://support.apple.com/HT208853
https://support.apple.com/HT208854
Source: MITRE
Published: 2018-06-08
Updated: 2019-03-07
Type: CWE-125
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH