PT-2021-13644 · Apple · Macos Mojave+7

Gabe Kirkpatrick + 1 · Published 2021-04-26 · Updated 2023-01-09 · CVE-2021-1884

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Apple iOS versions prior to 14.5 Apple iPadOS versions prior to 14.5 Apple watchOS versions prior to 7.4 Apple tvOS versions prior to 14.5 Apple macOS Big Sur versions prior to 11.3 Apple macOS Mojave versions prior to Security Update 2021-004 Apple macOS Catalina versions prior to Security Update 2021-003

Description: A race condition was addressed with improved locking, which may allow a remote attacker to cause a denial of service.

Recommendations: For Apple iOS versions prior to 14.5, update to iOS 14.5 or later. For Apple iPadOS versions prior to 14.5, update to iPadOS 14.5 or later. For Apple watchOS versions prior to 7.4, update to watchOS 7.4 or later. For Apple tvOS versions prior to 14.5, update to tvOS 14.5 or later. For Apple macOS Big Sur versions prior to 11.3, update to macOS Big Sur 11.3 or later. For Apple macOS Mojave versions prior to Security Update 2021-004, apply Security Update 2021-004. For Apple macOS Catalina versions prior to Security Update 2021-003, apply Security Update 2021-003.

Fix

DoS

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2021-1884

Affected Products

Apple Macos

Ios

Ipados

Macos Big Sur

Macos Catalina

Macos Mojave

Tvos

Watchos

References · 11

• https://support.apple.com/en-us/HT212317 · Vendor Advisory
• https://support.apple.com/en-us/HT212325 · Vendor Advisory
• https://support.apple.com/en-us/HT212530 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1884 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1884 · Vendor Advisory
• https://support.apple.com/en-us/HT212323 · Vendor Advisory
• https://support.apple.com/en-us/HT212324 · Vendor Advisory
• https://support.apple.com/en-us/HT212531 · Vendor Advisory
• https://support.apple.com/en-us/103126 · Note
• https://t.me/cvenotify/21022 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1884 · Note