PT-2021-13613 · Apple · Apple Macos

Jack Dates · Published 2021-04-26 · Updated 2021-09-20 · CVE-2021-1841

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: macOS versions prior to Big Sur 11.3 Security Update versions prior to 2021-002 Catalina

Description: A malicious application may be able to execute arbitrary code with kernel privileges due to an out-of-bounds write issue. This issue was addressed with improved bounds checking.

Recommendations: For macOS versions prior to Big Sur 11.3, update to macOS Big Sur 11.3 or later to resolve the issue. For versions that require Security Update, apply Security Update 2021-002 Catalina or later to fix the problem.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-1841

Affected Products

Apple Macos

References · 7

• https://support.apple.com/en-us/HT212326 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1841 · Vendor Advisory
• https://support.apple.com/en-us/HT212325 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1841 · Security Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1841 · Note
• https://support.apple.com/en-us/103126 · Note
• https://t.me/cvenotify/21195 · Telegram Post