An issue was discovered in certain Apple products. iOS before 11 is affected. The issue involves the "Security" component. It allows attackers to track users across installs via a crafted app that leverages Keychain data mishandling.
https://support.apple.com/HT208112
http://www.securityfocus.com/bid/101000
Source: Mitre, NVD
Published: 2017-10-23
Updated: 2019-10-03
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N