CVE-2021-1820 Information

Description

A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3 iOS 14.5 and iPadOS 14.5 watchOS 7.4 tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Reference

https://support.apple.com/en-us/HT212317 https://support.apple.com/en-us/HT212325 https://support.apple.com/en-us/HT212323 https://support.apple.com/en-us/HT212324

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

6.5