PT-2021-18805 · Apple · Apple Macos

Gabe Kirkpatrick + 1 · Published 2021-05-24 · Updated 2021-09-20 · CVE-2021-30683

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 Big Sur 11.4 Security Update versions prior to 2021-003 Catalina Security Update versions prior to 2021-004 Mojave

Description A use after free issue was addressed with improved memory management, allowing a malicious application to execute arbitrary code and potentially compromise user information.

Recommendations For macOS versions prior to Big Sur 11.4, update to macOS Big Sur 11.4 or later. For Security Update versions prior to 2021-003 Catalina, apply Security Update 2021-003 Catalina or later. For Security Update versions prior to 2021-004 Mojave, apply Security Update 2021-004 Mojave or later.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2021-30683

Affected Products

Apple Macos

References · 8

• https://support.apple.com/en-us/HT212530 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-30683 · Vendor Advisory
• https://support.apple.com/en-us/HT212529 · Vendor Advisory
• https://support.apple.com/en-us/HT212531 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30683 · Security Note
• https://t.me/cibsecurity/28486 · Telegram Post
• https://support.apple.com/en-us/103131 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30683 · Note