PT-2020-16877 · Apple · Security Update 2020-007 Mojave+3

Junzhi Lu + 1 · Published 2020-11-12 · Updated 2021-04-08 · CVE-2020-27952

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 11.1 macOS Big Sur version 11.0.1 Security Update 2020-001 Catalina Security Update 2020-007 Mojave

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

Recommendations For macOS versions prior to 11.1, update to macOS Big Sur 11.1 or later. For macOS Big Sur version 11.0.1, update to macOS Big Sur 11.1 or later. For Security Update 2020-001 Catalina, apply Security Update 2020-001 or later. For Security Update 2020-007 Mojave, apply Security Update 2020-007 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-27952

ZDI-20-1404

Affected Products

Apple Macos

Security Update 2020-001 Catalina

Security Update 2020-007 Mojave

Macos Big Sur

References · 8

• https://zerodayinitiative.com/advisories/ZDI-20-1404 · Security Note
• https://osv.dev/vulnerability/CVE-2020-27952 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27952 · Security Note
• https://support.apple.com/en-us/HT212011 · Vendor Advisory
• https://support.apple.com/en-us/HT211931 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27952 · Note
• https://support.apple.com/en-us/102846 · Note
• https://support.apple.com/en-us/103052 · Note