CVE-2021-30550: Use after free in Accessibility

Published May 23, 2021
·
Updated

Use after free in Accessibility in Google Chrome prior to 91.0.4472.101 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.

Credit

David Erceg

Affected Software

4 affected componentsFixes available
Google Chrome<91.0.4472.101
91.0.4472.101
Google Chrome<91.0.4472.101
fedoraproject fedora=33
fedoraproject fedora=34

Event History

May 23, 2021
CVE Published
12:00 AM
Jun 15, 2021
CVE Published
via MITRE·09:40 PM
Data Sourced
via MITRE·09:40 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2021-30550?

CVE-2021-30550 has been classified as a high-severity vulnerability due to its potential for heap corruption exploitation.

2

How do I fix CVE-2021-30550?

To mitigate CVE-2021-30550, users should update Google Chrome to version 91.0.4472.101 or later.

3

What versions of Google Chrome are affected by CVE-2021-30550?

CVE-2021-30550 affects Google Chrome versions prior to 91.0.4472.101.

4

Can CVE-2021-30550 be exploited through a malicious extension?

Yes, CVE-2021-30550 can be exploited if a user installs a malicious extension that takes advantage of the vulnerability.

5

Which platforms are impacted by CVE-2021-30550?

CVE-2021-30550 impacts Google Chrome on desktop platforms and also affects Fedora 33 and 34.

Contact

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