CVE-2021-30919 Information

Description

An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 15.1 and iPadOS 15.1 macOS Monterey 12.0.1 iOS 14.8.1 and iPadOS 14.8.1 tvOS 15.1 watchOS 8.1 Security Update 2021-007 Catalina macOS Big Sur 11.6.1. Processing a maliciously crafted PDF 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/HT212876 https://support.apple.com/en-us/HT212874 https://support.apple.com/en-us/HT212868 https://support.apple.com/en-us/HT212869 https://support.apple.com/en-us/HT212867 https://support.apple.com/en-us/HT212871 https://support.apple.com/en-us/HT212872 https://www.zerodayinitiative.com/advisories/ZDI-22-357/

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