CVE-2021-30737 Information

Description

A memory corruption issue in the ASN.1 decoder was addressed by removing the vulnerable code. This issue is fixed in tvOS 14.6 Security Update 2021-004 Mojave iOS 14.6 and iPadOS 14.6 iOS 12.5.4 Security Update 2021-003 Catalina macOS Big Sur 11.4 watchOS 7.5. Processing a maliciously crafted certificate may lead to arbitrary code execution.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT212530 https://support.apple.com/en-us/HT212531 https://support.apple.com/en-us/HT212529 https://support.apple.com/en-us/HT212528 https://support.apple.com/en-us/HT212548 https://support.apple.com/en-us/HT212532 https://support.apple.com/en-us/HT212533

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

8.8