PT-2021-6000 · Apple · Watchos+4

Mickey Jin + 2 · Published 2021-05-07 · Updated 2021-09-17 · CVE-2021-30701

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 Apple iOS versions prior to 14.6 Apple iPadOS versions prior to 14.6 Apple tvOS versions prior to 14.6 Apple watchOS versions prior to 7.5 Apple macOS versions prior to 11.4 Apple macOS versions prior to Security Update 2021-003 Catalina

Description The issue is related to a buffer out-of-bounds write in the ImageIO component of the operating systems, which can be exploited by processing a maliciously crafted image, potentially leading to arbitrary code execution. An attacker could execute arbitrary code on the target system by using a specially crafted PICT file.

Recommendations For Apple iOS versions prior to 14.6, update to iOS 14.6 or later. For Apple iPadOS versions prior to 14.6, update to iPadOS 14.6 or later. For Apple tvOS versions prior to 14.6, update to tvOS 14.6 or later. For Apple watchOS versions prior to 7.5, update to watchOS 7.5 or later. For Apple macOS versions prior to 11.4, update to macOS Big Sur 11.4 or later. For Apple macOS versions prior to Security Update 2021-003 Catalina, apply Security Update 2021-003 Catalina or later.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2022-00557

CVE-2021-30701

ZDI-21-785

ZDI-21-792

ZDI-21-793

Affected Products

Apple Macos

Ios

Ipados

Tvos

Watchos

References · 14

• https://zerodayinitiative.com/advisories/ZDI-21-785 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-793 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-30701 · Security Note
• https://support.apple.com/en-us/HT212529 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-792 · Security Note
• https://osv.dev/vulnerability/CVE-2021-30701 · Vendor Advisory
• https://support.apple.com/en-us/HT212533 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00557 · Security Note
• https://support.apple.com/en-us/HT212532 · Vendor Advisory
• https://support.apple.com/en-us/HT212530 · Vendor Advisory
• https://support.apple.com/en-us/HT212528 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30701 · Note
• https://cybersecurity-help.cz/vdb/SB2021052504 · Note
• https://support.apple.com/en-us/103131 · Note