CVE-2020-3856

HIGH

iPadOS < 13.3.1 - Memory Corruption via Maliciously Crafted String

Title source: llm
STIX 2.1

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. Processing a maliciously crafted string may lead to heap corruption.

References (4)

Core 4
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT210919
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT210918
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT210921
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT210920

Scores

CVSS v3 7.8
EPSS 0.0092
EPSS Percentile 55.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-20 CWE-787
Status published
Products (5)
apple/ipados < 13.3.1
apple/iphone_os < 13.3.1
apple/mac_os_x < 10.15.3
apple/tvos < 13.3.1
apple/watchos < 6.1.2
Published Feb 27, 2020
Tracked Since Feb 18, 2026