The Cascading Style Sheets (CSS) implementation in Apple iOS before 9.2.1 and Safari before 9.0.3 mishandles the "a:visited button" selector during height processing, which makes it easier for remote attackers to obtain sensitive browser-history information via a crafted web site.
http://lists.apple.com/archives/security-announce/2016/Jan/msg00002.html
http://lists.apple.com/archives/security-announce/2016/Jan/msg00004.html
http://packetstormsecurity.com/files/136227/WebKitGTK-Memory-Corruption-Denial-Of-Service.html
http://www.securityfocus.com/archive/1/537771/100/0/threaded
http://www.securityfocus.com/bid/81263
http://www.securitytracker.com/id/1034737
https://security.gentoo.org/glsa/201706-15
Source: MITRE
Published: 2016-02-01
Updated: 2018-10-09
Type: CWE-200
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 4.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Impact Score: 1.4
Exploitability Score: 2.8
Severity: MEDIUM