CVE-2021-37978: Heap buffer overflow in Blink

Published Aug 4, 2021
·
Updated

Heap buffer overflow in Blink in Google Chrome prior to 94.0.4606.81 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Credit

Yangkang@@dnpushme(360 ATA)

Affected Software

16 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
alpine/qt5-qtwebengine<5.15.3_git20211006-r1
5.15.3_git20211006-r1
alpine/qt5-qtwebengine<5.15.3_git20211006-r3
5.15.3_git20211006-r3
alpine/qt5-qtwebengine<5.15.3_git20211006-r3
5.15.3_git20211006-r3
alpine/qt5-qtwebengine<5.15.3_git20211006-r3
5.15.3_git20211006-r3
alpine/qt5-qtwebengine<5.15.3_git20211006-r3
5.15.3_git20211006-r3
alpine/qt5-qtwebengine<5.15.3_git20211006-r3
5.15.3_git20211006-r3
alpine/qt5-qtwebengine<5.15.3_git20211006-r3
5.15.3_git20211006-r3
alpine/qt5-qtwebengine<5.15.3_git20211006-r3
5.15.3_git20211006-r3
alpine/qt5-qtwebengine<5.15.3_git20211006-r3
5.15.3_git20211006-r3
alpine/qt5-qtwebengine<5.15.3_git20211006-r3
5.15.3_git20211006-r3
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 alpine/qt5-qtwebengine to a version that resolves this vulnerability.

    Fixed in 5.15.3_git20211006-r1
  3. Upgrade

    Upgrade alpine/qt5-qtwebengine to a version that resolves this vulnerability.

    Fixed in 5.15.3_git20211006-r3
  4. 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

Aug 4, 2021
CVE Published
12:00 AM
Nov 2, 2021
CVE Published
via MITRE·08:25 PM
Data Sourced
via MITRE·08:25 PM
DescriptionWeakness
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·09:15 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2021-37978?

CVE-2021-37978 has a high severity rating due to its potential for remote exploitation through unauthorized access.

2

How do I fix CVE-2021-37978?

To fix CVE-2021-37978, users should update Google Chrome or Chromium to version 94.0.4606.81 or later.

3

Which versions of Google Chrome are affected by CVE-2021-37978?

CVE-2021-37978 affects all versions of Google Chrome prior to 94.0.4606.81.

4

How can CVE-2021-37978 be exploited?

An attacker could exploit CVE-2021-37978 by sending a specially crafted HTML page that triggers a heap buffer overflow.

5

What is the primary component vulnerable in CVE-2021-37978?

The primary component vulnerable in CVE-2021-37978 is the Blink rendering engine in Google Chrome.

Contact

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