CVE-2021-45481

webkitgtk: Incorrect memory allocation in WebCore::ImageBufferCairoImageSurfaceBackend::create

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In WebKitGTK before 2.32.4, there is incorrect memory allocation in WebCore::ImageBufferCairoImageSurfaceBackend::create, leading to a segmentation violation and application crash, a different vulnerability than CVE-2021-30889.

En WebKitGTK versiones anteriores a 2.32.4, se presenta una asignación de memoria incorrecta en la función WebCore::ImageBufferCairoImageSurfaceBackend::create, conllevando una violación de la segmentación y un bloqueo de la aplicación, una vulnerabilidad diferente de CVE-2021-30889

A segmentation violation vulnerability was found in webkitgtk. An attacker with network access could pass specially crafted HTML files causing an application to halt or crash.

WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform. Issues addressed include buffer overflow, bypass, code execution, cross site scripting, information leakage, out of bounds read, and use-after-free vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-12-25 CVE Reserved
2021-12-25 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-401: Missing Release of Memory after Effective Lifetime

CAPEC

References (4)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2022/01/21/2	Mailing List

URL	Date	SRC
https://github.com/ChijinZ/security_advisories/tree/master/webkitgtk-2.32.3	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2021-45481	2022-05-10
https://bugzilla.redhat.com/show_bug.cgi?id=2040327	2022-05-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Webkitgtk Search vendor "Webkitgtk"		Webkitgtk Search vendor "Webkitgtk" for product "Webkitgtk"				< 2.32.4 Search vendor "Webkitgtk" for product "Webkitgtk" and version " < 2.32.4"		-		Affected