PT-2021-13545 · Apple · Ios+3

Mickey Jin · Published 2021-02-01 · Updated 2021-04-13 · CVE-2021-1753

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave iOS versions prior to 14.4 iPadOS versions prior to 14.4

Description: The issue is related to an out-of-bounds read that can be addressed with improved bounds checking. Processing a maliciously crafted image may lead to arbitrary code execution.

Recommendations: For macOS versions prior to 11.2, update to macOS Big Sur 11.2. For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina. For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave. For iOS versions prior to 14.4, update to iOS 14.4. For iPadOS versions prior to 14.4, update to iPadOS 14.4.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-1753

ZDI-21-139

Affected Products

Apple Macos

Security Update

Ios

Ipados

References · 7

• https://osv.dev/vulnerability/CVE-2021-1753 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-139 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-1753 · Security Note
• https://support.apple.com/en-us/HT212147 · Vendor Advisory
• https://support.apple.com/en-us/HT212146 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1753 · Note
• https://support.apple.com/en-us/103124 · Note