PT-2021-13591 · Apple · Macos Mojave+7

Jundong Xie · Published 2021-04-26 · Updated 2021-09-16 · CVE-2021-1809

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: macOS Catalina versions prior to Security Update 2021-002 macOS Mojave versions prior to Security Update 2021-003 iOS versions prior to 14.5 iPadOS versions prior to 14.5 watchOS versions prior to 7.4 tvOS versions prior to 14.5 macOS Big Sur versions prior to 11.3

Description: A memory corruption issue was addressed with improved validation. This issue allows a malicious application to potentially read restricted memory.

Recommendations: For macOS Catalina, apply Security Update 2021-002. For macOS Mojave, apply Security Update 2021-003. For iOS, update to version 14.5 or later. For iPadOS, update to version 14.5 or later. For watchOS, update to version 7.4 or later. For tvOS, update to version 14.5 or later. For macOS Big Sur, update to version 11.3 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-1809

Affected Products

Apple Macos

Ios

Ipados

Macos Big Sur

Macos Catalina

Macos Mojave

Tvos

Watchos

References · 12

• https://support.apple.com/en-us/HT212317 · Vendor Advisory
• https://support.apple.com/en-us/HT212326 · Vendor Advisory
• https://support.apple.com/en-us/HT212325 · Vendor Advisory
• https://support.apple.com/en-us/HT212324 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1809 · Vendor Advisory
• https://support.apple.com/en-us/HT212323 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1809 · Security Note
• https://support.apple.com/en-us/HT212327 · Vendor Advisory
• https://t.me/cibsecurity/28438 · Telegram Post
• https://support.apple.com/en-us/103126 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1809 · Note
• https://t.me/cvenotify/20998 · Telegram Post