PT-2021-13533 · Apple · Apple Macos

Xingwei Lin · Published 2021-02-01 · Updated 2022-06-03 · CVE-2021-1737

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 Big Sur 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave

Description: An out-of-bounds write issue was addressed with improved input validation. Processing a maliciously crafted image may lead to arbitrary code execution.

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

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-1737

ZDI-21-193

Affected Products

Apple Macos

References · 9

• https://osv.dev/vulnerability/CVE-2021-1737 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1737 · Security Note
• https://support.apple.com/kb/HT212146 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-193 · Security Note
• https://support.apple.com/en-us/HT212147 · Vendor Advisory
• https://t.me/cvenotify/12545 · Telegram Post
• https://support.apple.com/en-us/103124 · Note
• https://t.me/cvenotify/15285 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1737 · Note