PT-2020-20933 · Apple · Apple Macos

Mickey Jin + 1 · Published 2020-11-12 · Updated 2021-04-27 · CVE-2021-1790

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 read issue was addressed with improved input validation. Processing a maliciously crafted font 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

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-1790

Affected Products

Apple Macos

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2021-1790 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1790 · Vendor Advisory
• https://support.apple.com/en-us/HT212147 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1790 · Note
• https://t.me/cybersecuritytechnologies/3225 · Telegram Post
• https://support.apple.com/en-us/103124 · Note
• https://support.apple.com/en-us/102846 · Note
• https://t.me/cvenotify/12554 · Telegram Post
• https://support.apple.com/en-us/HT211931 · Note