CVE-2021-37993: Use after free in PDF Accessibility

Published Oct 2, 2021
·
Updated

Use after free in PDF Accessibility in Google Chrome prior to 95.0.4638.54 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Credit

Cassidy Kim(Amber Security Lab), OPPO Mobile Telecommunications Corp. Ltd.

Affected Software

5 affected componentsFixes available
debian/chromium<=90.0.4430.212-1~deb10u1
116.0.5845.180-1~deb11u1118.0.5993.70-1~deb11u1116.0.5845.180-1~deb12u1118.0.5993.70-1~deb12u1118.0.5993.70-1
Google Chrome<95.0.4638.54
95.0.4638.54
Google Chrome<95.0.4638.54
Debian Debian Linux=10.0
Debian Debian Linux=11.0

Event History

Oct 2, 2021
CVE Published
12:00 AM
Nov 2, 2021
CVE Published
via MITRE·09:05 PM
Data Sourced
via MITRE·09:05 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 CVE-2021-37993?

CVE-2021-37993 is a vulnerability that allows a remote attacker to potentially exploit heap corruption in Google Chrome prior to version 95.0.4638.54 via a crafted HTML page.

2

How does CVE-2021-37993 work?

CVE-2021-37993 is a use after free vulnerability in PDF Accessibility in Google Chrome, which can lead to heap corruption when processing a specially crafted HTML page.

3

What software versions are affected by CVE-2021-37993?

Google Chrome versions prior to 95.0.4638.54 are affected by CVE-2021-37993.

4

What is the severity of CVE-2021-37993?

The severity of CVE-2021-37993 is not specified.

5

How can I fix CVE-2021-37993?

To fix CVE-2021-37993, update Google Chrome to version 95.0.4638.54 or later.

Company

Resources

Contact

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