CVE-2021-30555: Use after free in Sharing

Published Jun 1, 2021
·
Updated

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.

Credit

David Erceg

Affected Software

4 affected componentsFixes available
Google Chrome<91.0.4472.114
91.0.4472.114
Google Chrome<91.0.4472.114
fedoraproject fedora=33
fedoraproject fedora=34

Event History

Jun 1, 2021
CVE Published
12:00 AM
Jul 2, 2021
CVE Published
via MITRE·06:45 PM
Data Sourced
via MITRE·06:45 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2021-30555?

CVE-2021-30555 is rated as high severity due to the potential for exploitation leading to heap corruption.

2

How do I fix CVE-2021-30555?

To fix CVE-2021-30555, update Google Chrome to version 91.0.4472.114 or later.

3

What happens if I don't patch CVE-2021-30555?

If not patched, CVE-2021-30555 could allow attackers to exploit users through malicious extensions leading to possible data corruption.

4

What products are affected by CVE-2021-30555?

CVE-2021-30555 affects all versions of Google Chrome prior to version 91.0.4472.114.

5

Is my operating system affected by CVE-2021-30555?

CVE-2021-30555 primarily affects Google Chrome and does not directly impact operating systems like Fedora.

Contact

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