PT-2021-13625 · Apple · Apple Macos+4

Mickey Jin + 1 · Published 2021-04-26 · Updated 2021-09-17 · CVE-2021-1858

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 11.3 iOS versions prior to 14.5 iPadOS versions prior to 14.5 watchOS versions prior to 7.4 tvOS versions prior to 14.5

Description: Processing a maliciously crafted image may lead to arbitrary code execution. An out-of-bounds write issue was addressed with improved bounds checking.

Recommendations: For macOS versions prior to 11.3, update to macOS Big Sur 11.3 or later. For iOS versions prior to 14.5, update to iOS 14.5 or later. For iPadOS versions prior to 14.5, update to iPadOS 14.5 or later. For watchOS versions prior to 7.4, update to watchOS 7.4 or later. For tvOS versions prior to 14.5, update to tvOS 14.5 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-1858

ZDI-21-599

Affected Products

Apple Macos

Ios

Ipados

Tvos

Watchos

References · 11

• https://zerodayinitiative.com/advisories/ZDI-21-599 · Security Note
• 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://osv.dev/vulnerability/CVE-2021-1858 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1858 · Security Note
• https://support.apple.com/en-us/HT212323 · Vendor Advisory
• https://support.apple.com/en-us/HT212324 · Vendor Advisory
• https://support.apple.com/en-us/103126 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1858 · Note
• https://t.me/cvenotify/21009 · Telegram Post