CVE-2021-37977: Use after free in Garbage Collection

Published Sep 24, 2021
·
Updated

Use after free in Garbage Collection in Google Chrome prior to 94.0.4606.81 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Credit

Anonymous

Affected Software

6 affected componentsFixes available
Google Chrome<94.0.4606.81
94.0.4606.81
Google Chrome<94.0.4606.81
Fedoraproject Fedora=33
Debian Debian Linux=10.0
Debian Debian Linux=11.0
debian/chromium
150.0.7871.100-1~deb12u1156.0.8078.79-1~deb12u1150.0.7871.181-1~deb13u1156.0.8078.79-1~deb13u1156.0.8078.79-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 94.0.4606.81
  2. Upgrade

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

    Fixed in 150.0.7871.100-1~deb12u1Fixed in 156.0.8078.79-1~deb12u1Fixed in 150.0.7871.181-1~deb13u1Fixed in 156.0.8078.79-1~deb13u1Fixed in 156.0.8078.79-1

Event History

Sep 24, 2021
CVE Published
12:00 AM
Nov 2, 2021
CVE Published
via MITRE·08:25 PM
Data Sourced
via MITRE·08:25 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What does an attacker need to exploit this issue?

An attacker needs to induce a user to load a crafted HTML page. The CVSS vector indicates the attack can be delivered remotely, requires no privileges, and requires user interaction.

2

Which Chrome versions are affected?

Google Chrome versions prior to 94.0.4606.81 are affected. The listed software also includes Debian Linux, Debian's chromium package, and Fedora.

3

What is the impact of successful exploitation?

Successful exploitation may allow heap corruption. The CVSS rating indicates potential high impact to confidentiality, integrity, and availability.

Contact

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