CVE-2021-30555

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Use after free in Sharing in Google Chrome prior to 91.0.4472.114 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page and user gesture.

Un uso de memoria previamente liberada en Sharing en Google Chrome versiones anteriores a 91.0.4472.114, permitía a un atacante que convenció a un usuario de instalar una extensión maliciosa explotar potencialmente la corrupción de la pila por medio de una página HTML diseñada y un gesto del usuario

*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
2021-07-02 CVE Published
2024-03-17 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54	2023-11-07
https://security.gentoo.org/glsa/202107-06	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Google Search vendor "Google"	Chrome Search vendor "Google" for product "Chrome"	< 91.0.4472.114 Search vendor "Google" for product "Chrome" and version " < 91.0.4472.114"	-	Affected	in	Fedoraproject Search vendor "Fedoraproject"	Fedora Search vendor "Fedoraproject" for product "Fedora"	33 Search vendor "Fedoraproject" for product "Fedora" and version "33"	-	Safe
Google Search vendor "Google"	Chrome Search vendor "Google" for product "Chrome"	< 91.0.4472.114 Search vendor "Google" for product "Chrome" and version " < 91.0.4472.114"	-	Affected	in	Fedoraproject Search vendor "Fedoraproject"	Fedora Search vendor "Fedoraproject" for product "Fedora"	34 Search vendor "Fedoraproject" for product "Fedora" and version "34"	-	Safe