CVE-2021-30902

Apple Security Advisory 2021-10-26-2

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A local attacker may be able to cause unexpected application termination or arbitrary code execution.

Se abordó un problema de uso de memoria previamente liberada con una administración de memoria mejorada. Este problema se corrigió en iOS versión 14.8.1 y iPadOS versión 14.8.1, iOS versión 15.1 y iPadOS versión 15.1. Un atacante local podría causar la terminación inesperada de la aplicación o la ejecución de código arbitrario

iOS 15.1 and iPadOS 15.1 addresses buffer overflow, code execution, cross site scripting, information leakage, integer overflow, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

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
2021-08-24 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (2)

URL	Tag	Source
https://support.apple.com/en-us/HT212867	X_refsource_misc
https://support.apple.com/en-us/HT212868	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Ipad Os Search vendor "Apple" for product "Ipad Os"				< 14.8.1 Search vendor "Apple" for product "Ipad Os" and version " < 14.8.1"		-		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"				< 14.8.1 Search vendor "Apple" for product "Iphone Os" and version " < 14.8.1"		-		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