PT-2021-13557 · Apple · Apple Macos+4

Danny Rosseau · Published 2021-02-01 · Updated 2021-04-09 · CVE-2021-1766

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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 watchOS versions prior to 7.3 tvOS versions prior to 14.4 iOS versions prior to 14.4 iPadOS versions prior to 14.4

Description: This issue was addressed with improved checks. Processing a maliciously crafted image may lead to a denial of service.

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 watchOS versions prior to 7.3, update to watchOS 7.3. For tvOS versions prior to 14.4, update to tvOS 14.4. 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

Related Identifiers

CVE-2021-1766

Affected Products

Apple Macos

Ios

Ipados

Tvos

Watchos

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2021-1766 · Security Note
• https://support.apple.com/en-us/HT212148 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1766 · Vendor Advisory
• https://support.apple.com/en-us/HT212147 · Vendor Advisory
• https://support.apple.com/en-us/HT212149 · Vendor Advisory
• https://support.apple.com/en-us/HT212146 · Vendor Advisory
• https://t.me/cvenotify/12980 · Telegram Post
• https://support.apple.com/en-us/103124 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1766 · Note