4
CVSSv2

CVE-2016-4644

Published: 11/01/2019 Updated: 17/01/2019
CVSS v2 Base Score: 4 | Impact Score: 2.9 | Exploitability Score: 8
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 381
Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N

Vulnerability Summary

In iOS prior to 9.3.3, tvOS prior to 9.2.2, and OS X El Capitan before v10.11.6 and Security Update 2016-004, a downgrade issue existed with HTTP authentication credentials saved in Keychain. This issue was addressed by storing the authentication types with the credentials.

Vulnerability Trend

Affected Products

Vendor Product Versions
AppleApple Tv1.0.0, 1.1.0, 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.2.0, 2.3.0, 2.3.1, 2.4.0, 3.0.0, 3.0.1, 3.0.2, 4.1.0, 4.1.1, 4.2.0, 4.2.1, 4.2.2, 4.3.0, 4.4.0, 4.4.2, 4.4.3, 4.4.4, 5.0.0, 5.0.1, 5.0.2, 5.1.0, 5.1.1, 5.2.0, 6.0, 6.0.1, 6.0.2, 6.1, 6.1.1, 6.1.2, 6.2, 6.2.1, 7.0, 7.0.1, 7.0.3, 7.1, 9.0.1, 9.1.1
AppleIphone Os1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 2.0, 2.0.0, 2.0.1, 2.0.2, 2.1, 2.1.1, 2.2, 2.2.1, 3.0, 3.0.1, 3.1, 3.1.1, 3.1.2, 3.1.3, 3.2, 3.2.1, 3.2.2, 4.0, 4.0.1, 4.0.2, 4.1, 4.2.1, 4.2.5, 4.2.8, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.5, 5.0, 5.0.1, 5.1, 5.1.1, 6.0, 6.0.1, 6.0.2, 6.1, 6.1.2, 6.1.3, 6.1.4, 6.1.5, 6.1.6, 7.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5, 7.0.6, 7.1, 7.1.1, 7.1.2, 8.0, 8.0.1, 8.0.2, 8.1, 8.1.2, 8.1.3, 8.2, 8.3, 8.4.1, 9.0, 9.0.1, 9.0.2, 9.1, 9.2, 9.2.1, 9.3, 9.3.1, 9.3.2

Vendor Advisories

About Apple security updatesFor our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available Recent releases are listed on the Apple security updates page For more information about security, see the Apple Product Security page You can encrypt ...
About Apple security updatesFor our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available Recent releases are listed on the Apple security updates page For more information about security, see the Apple Product Security page You can encrypt ...
About Apple security updatesFor our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available Recent releases are listed on the Apple security updates page For more information about security, see the Apple Product Security page You can encrypt ...