CVE-2021-1778 Information

Description

An out-of-bounds read issue existed in the curl. This issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.2 Security Update 2021-001 Catalina Security Update 2021-001 Mojave watchOS 7.3 tvOS 14.4 iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to a denial of service.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT212146 https://support.apple.com/en-us/HT212149 https://support.apple.com/en-us/HT212147 https://support.apple.com/en-us/HT212148 An out-of-bounds read issue existed in the curl. This issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.2 Security Update 2021-001 Catalina Security Update 2021-001 Mojave watchOS 7.3 tvOS 14.4 iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to a denial of service.

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5