CVE-2021-30847

Apple Security Advisory 2021-10-26-11

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

This issue was addressed with improved checks. This issue is fixed in watchOS 8, macOS Big Sur 11.6, Security Update 2021-005 Catalina, tvOS 15, iOS 15 and iPadOS 15, iTunes 12.12 for Windows. Processing a maliciously crafted image may lead to arbitrary code execution.

Este problema se abordó con comprobaciones mejoradas. Este problema es corregido en watchOS versión 8, macOS Big Sur versión 11.6, Security Update 2021-005 Catalina, tvOS versión 15, iOS versión 15 y iPadOS versión 15, iTunes versión 12.12 para Windows. El procesamiento de una imagen maliciosamente diseñada puede conllevar a una ejecución de código arbitrario

macOS Big Sur 11.6 addresses buffer overflow, bypass, code execution, denial of service, integer overflow, out of bounds read, and use-after-free vulnerabilities.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-13 CVE Reserved
2021-09-22 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (11)

URL	Tag	Source
http://seclists.org/fulldisclosure/2021/Oct/61	Mailing List
http://seclists.org/fulldisclosure/2021/Oct/62	Mailing List
http://seclists.org/fulldisclosure/2021/Oct/63	Mailing List
https://support.apple.com/kb/HT212807	Release Notes

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/en-us/HT212804	2021-11-30
https://support.apple.com/en-us/HT212805	2021-11-30
https://support.apple.com/en-us/HT212814	2021-11-30
https://support.apple.com/en-us/HT212815	2021-11-30
https://support.apple.com/en-us/HT212817	2021-11-30
https://support.apple.com/en-us/HT212819	2021-11-30
https://support.apple.com/kb/HT212953	2021-11-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Itunes Search vendor "Apple" for product "Itunes"				< 12.12 Search vendor "Apple" for product "Itunes" and version " < 12.12"		windows		Affected
Apple Search vendor "Apple"		Ipados Search vendor "Apple" for product "Ipados"				< 15.0 Search vendor "Apple" for product "Ipados" and version " < 15.0"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 15.0 Search vendor "Apple" for product "Iphone Os" and version " < 15.0"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				>= 10.15 <= 10.15.6 Search vendor "Apple" for product "Mac Os X" and version " >= 10.15 <= 10.15.6"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		security_update_2020		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		security_update_2020-001		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		security_update_2020-005		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		security_update_2020-007		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		security_update_2021-001		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		security_update_2021-002		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		security_update_2021-003		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		security_update_2021-004		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7"		supplemental_update		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				>= 11.0 < 11.6 Search vendor "Apple" for product "Macos" and version " >= 11.0 < 11.6"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 15.0 Search vendor "Apple" for product "Tvos" and version " < 15.0"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 8.0 Search vendor "Apple" for product "Watchos" and version " < 8.0"		-		Affected