PT-2020-16860 · Apple · Apple Macos+4

Xingwei Lin · Published 2020-11-12 · Updated 2021-03-10 · CVE-2020-27927

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 11.0.1 iOS versions prior to 14.2 iPadOS versions prior to 14.2 tvOS versions prior to 14.2 watchOS versions prior to 7.1

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

Recommendations For macOS versions prior to 11.0.1, update to macOS Big Sur 11.0.1. For iOS versions prior to 14.2, update to iOS 14.2. For iPadOS versions prior to 14.2, update to iPadOS 14.2. For tvOS versions prior to 14.2, update to tvOS 14.2. For watchOS versions prior to 7.1, update to watchOS 7.1.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-27927

Affected Products

Apple Macos

Ios

Ipados

Tvos

Watchos

References · 13

• https://osv.dev/vulnerability/CVE-2020-27927 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27927 · Security Note
• https://support.apple.com/en-us/HT211928 · Vendor Advisory
• https://support.apple.com/en-us/HT211930 · Vendor Advisory
• https://support.apple.com/en-us/HT211929 · Vendor Advisory
• https://support.apple.com/en-us/HT211931 · Vendor Advisory
• https://t.me/cvenotify/6878 · Telegram Post
• https://support.apple.com/en-us/102846 · Note
• https://t.me/cibsecurity/17307 · Telegram Post
• https://t.me/cvenotify/7127 · Telegram Post
• http://seclists.org/fulldisclosure/2020/Dec/32 · Note
• https://t.me/cibsecurity/17449 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27927 · Note