CVE-2021-30682

webkitgtk: Logic issue leading to leak of sensitive user information

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A logic issue was addressed with improved restrictions. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. A malicious application may be able to leak sensitive user information.

Se abordó un problema lógico con restricciones mejoradas. Este problema es corregido en tvOS versión 14.6, iOS versión 14.6 y iPadOS versión 14.6, Safari versión 14.1.1, macOS Big Sur versión 11.4, watchOS versión 7.5. Una aplicación maliciosa podría filtrar información confidencial del usuario

macOS Big Sur 11.4 addresses buffer overflow, bypass, code execution, cross site scripting, denial of service, information leakage, null pointer, out of bounds read, out of bounds write, path sanitization, and use-after-free vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-13 CVE Reserved
2021-05-26 CVE Published
2023-02-09 First Exploit
2024-08-03 CVE Updated
2025-04-13 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (8)

URL	Tag	Source

URL	Date	SRC
https://github.com/threatnix/csp-playground	2023-02-09

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/en-us/HT212528	2021-09-20
https://support.apple.com/en-us/HT212529	2021-09-20
https://support.apple.com/en-us/HT212532	2021-09-20
https://support.apple.com/en-us/HT212533	2021-09-20
https://support.apple.com/en-us/HT212534	2021-09-20
https://access.redhat.com/security/cve/CVE-2021-30682	2021-11-09
https://bugzilla.redhat.com/show_bug.cgi?id=1986879	2021-11-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Safari Search vendor "Apple" for product "Safari"				< 14.1.1 Search vendor "Apple" for product "Safari" and version " < 14.1.1"		-		Affected
Apple Search vendor "Apple"		Ipados Search vendor "Apple" for product "Ipados"				< 14.6 Search vendor "Apple" for product "Ipados" and version " < 14.6"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 14.6 Search vendor "Apple" for product "Iphone Os" and version " < 14.6"		-		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				>= 11.0 < 11.4 Search vendor "Apple" for product "Macos" and version " >= 11.0 < 11.4"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 14.6 Search vendor "Apple" for product "Tvos" and version " < 14.6"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 7.5 Search vendor "Apple" for product "Watchos" and version " < 7.5"		-		Affected