CVE-2021-37970: Use after free in File System API

Published Sep 9, 2021
·
Updated

Use after free in File System API in Google Chrome prior to 94.0.4606.54 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Credit

SorryMybad@@S0rryMybad(Kunlun Lab)

Affected Software

7 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<94.0.4606.54
94.0.4606.54
Google Chrome<94.0.4606.54
Fedoraproject Fedora=33
Fedoraproject Fedora=35
Debian Debian Linux=10.0
Debian Debian Linux=11.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/chromium to a version that resolves this vulnerability.

    Fixed in 116.0.5845.180-1~deb11u1Fixed in 118.0.5993.70-1~deb11u1Fixed in 116.0.5845.180-1~deb12u1Fixed in 118.0.5993.70-1~deb12u1Fixed in 118.0.5993.70-1
  2. Upgrade

    Upgrade Google Chrome (Trace Event) to a version that resolves this vulnerability.

    Fixed in 94.0.4606.54

Event History

Sep 9, 2021
CVE Published
12:00 AM
Oct 8, 2021
CVE Published
via MITRE·09:30 PM
Data Sourced
via MITRE·09:30 PM
DescriptionWeakness
Data Sourced
via NVD·10:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2021-37970?

CVE-2021-37970 is considered a high severity vulnerability due to its potential to allow remote attackers to exploit heap corruption.

2

How do I fix CVE-2021-37970?

To fix CVE-2021-37970, users should update Google Chrome to version 94.0.4606.54 or later.

3

What systems are affected by CVE-2021-37970?

CVE-2021-37970 affects Google Chrome versions prior to 94.0.4606.54 and certain versions of Chromium on Debian and Fedora.

4

Can CVE-2021-37970 be exploited through a website?

Yes, CVE-2021-37970 can be exploited by a remote attacker via a crafted HTML page.

5

What type of vulnerability is CVE-2021-37970?

CVE-2021-37970 is a use-after-free vulnerability in the File System API of Google Chrome.

Contact

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