PT-2021-18868 · Apple · Tvos+8

Mickey Jin + 1 · Published 2021-07-21 · Updated 2022-02-22 · CVE-2021-30785

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 iOS versions prior to 14.7 macOS Big Sur versions prior to 11.5 watchOS versions prior to 7.6 tvOS versions prior to 14.7 macOS Catalina versions prior to Security Update 2021-004 iCloud for Windows versions prior to 12.5 iTunes for Windows versions prior to 12.11.4

Description A buffer overflow issue was addressed with improved bounds checking. Processing a maliciously crafted image may lead to arbitrary code execution.

Recommendations For iOS versions prior to 14.7, update to iOS 14.7 or later. For macOS Big Sur versions prior to 11.5, update to macOS Big Sur 11.5 or later. For watchOS versions prior to 7.6, update to watchOS 7.6 or later. For tvOS versions prior to 14.7, update to tvOS 14.7 or later. For macOS Catalina versions prior to Security Update 2021-004, apply Security Update 2021-004 or later. For iCloud for Windows versions prior to 12.5, update to iCloud for Windows 12.5 or later. For iTunes for Windows versions prior to 12.11.4, update to iTunes for Windows 12.11.4 or later.

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2021-30785

ZDI-22-353

Affected Products

Apple Macos

Icloud For Windows

Ios

Itunes

Itunes For Windows

Macos Big Sur

Macos Catalina

Tvos

Watchos

References · 10

• https://zerodayinitiative.com/advisories/ZDI-22-353 · Security Note
• https://support.apple.com/en-us/HT212601 · Vendor Advisory
• https://support.apple.com/en-us/HT212605 · Vendor Advisory
• https://support.apple.com/en-us/HT212600 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-30785 · Vendor Advisory
• https://support.apple.com/en-us/HT212604 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30785 · Security Note
• https://support.apple.com/en-us/HT212602 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30785 · Note
• https://support.apple.com/en-us/102849 · Note