CVE-2020-9955 Information

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in watchOS 7.0 tvOS 14.0 iOS 14.0 and iPadOS 14.0 macOS Big Sur 11.0.1. Processing a maliciously crafted image may lead to arbitrary code execution.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT211844 https://support.apple.com/en-us/HT211843 https://support.apple.com/en-us/HT211931 https://support.apple.com/en-us/HT211850

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8