CVE-2021-30936

webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution

Severity Score

8.8

*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 tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.

Se abordó un problema de uso de memoria previamente liberada con una administración de la memoria mejorada. Este problema es corregido en tvOS versión 15.2, macOS Monterey versión 12.1, Safari versión 15.2, iOS versión 15.2 e iPadOS versión 15.2, watchOS versión 8.3. El procesamiento de contenido web creado con fines maliciosos puede conllevar a una ejecución de código arbitrario

A use after free vulnerability was found in webkitgtk. An attacker with network access could pass specially crafted web content files causing an application to halt, crash, or may lead to arbitrary code execution.

*Credits: N/A

Attack Vector

Network

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
2021-08-24 CVE Published
2024-05-09 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (12)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2022/01/21/2	Mailing List
https://support.apple.com/en-us/HT212975	X_refsource_misc
https://support.apple.com/en-us/HT212976	X_refsource_misc
https://support.apple.com/en-us/HT212978	X_refsource_misc
https://support.apple.com/en-us/HT212980	X_refsource_misc
https://support.apple.com/en-us/HT212982	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EQVZ3CEMTINLBZ7PBC7WRXVEVCRHNSM	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQKWD4BXRDD2YGR5AVU7H5J5PIQIEU6V	2023-11-07
https://www.debian.org/security/2022/dsa-5060	2023-11-07
https://www.debian.org/security/2022/dsa-5061	2023-11-07
https://access.redhat.com/security/cve/CVE-2021-30936	2022-05-10
https://bugzilla.redhat.com/show_bug.cgi?id=2044528	2022-05-10

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"				< 15.2 Search vendor "Apple" for product "Safari" and version " < 15.2"		-		Affected
Apple Search vendor "Apple"		Ipados Search vendor "Apple" for product "Ipados"				< 15.2 Search vendor "Apple" for product "Ipados" and version " < 15.2"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 15.2 Search vendor "Apple" for product "Iphone Os" and version " < 15.2"		-		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				>= 12.0 < 12.1 Search vendor "Apple" for product "Macos" and version " >= 12.0 < 12.1"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 15.2 Search vendor "Apple" for product "Tvos" and version " < 15.2"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 8.3 Search vendor "Apple" for product "Watchos" and version " < 8.3"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected