CVE-2020-9942 - Improper Restriction of Rendered UI Layers or Frames

Severity

43%

Complexity

27%

Confidentiality

23%

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, Safari 13.1.2. Visiting a malicious website may lead to address bar spoofing.

CVSS 3.1 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N).

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N).

Overview

Type

Apple

First reported 4 years ago

2020-12-08 20:15:00

Last updated 4 years ago

2020-12-15 20:15:00

Affected Software

Apple Safari

Apple Mac OS X

References

https://support.apple.com/en-us/HT211292

https://support.apple.com/en-us/HT211931

https://support.apple.com/en-us/HT211292

Release Notes, Vendor Advisory

https://support.apple.com/en-us/HT211931

Release Notes, Vendor Advisory

20201215 APPLE-SA-2020-12-14-4 Additional information for APPLE-SA-2020-11-13-1 macOS Big Sur 11.0.1

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