CVE-2021-21160: Heap buffer overflow in WebAudio

Published Jan 25, 2021
·
Updated

Heap buffer overflow in WebAudio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Credit

Marcin 'Icewall' Noga(Cisco Talos)

Affected Software

28 affected componentsFixes available
debian/chromium
90.0.4430.212-1~deb10u1116.0.5845.180-1~deb11u1118.0.5993.70-1~deb11u1116.0.5845.180-1~deb12u1118.0.5993.70-1~deb12u1118.0.5993.70-1
Google Chrome<89.0.4389.72
89.0.4389.72
Google Chrome<89.0.4389.72
Fedoraproject Fedora=32
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Debian Debian Linux=10.0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/chromium<89.0.4389.72-r0
89.0.4389.72-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 90.0.4430.212-1~deb10u1Fixed 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 89.0.4389.72
  3. Upgrade

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

    Fixed in 89.0.4389.72-r0
  4. Upgrade

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

    Fixed in 5.15.3_git20200401-r0

Event History

Jan 25, 2021
CVE Published
12:00 AM
Mar 9, 2021
CVE Published
via MITRE·05:46 PM
Data Sourced
via MITRE·05:46 PM
DescriptionWeakness
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·06:15 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 CVE-2021-21160?

CVE-2021-21160 is a vulnerability in WebAudio in Google Chrome prior to version 89.0.4389.72.

2

How can a remote attacker exploit CVE-2021-21160?

A remote attacker can potentially exploit CVE-2021-21160 by using a crafted HTML page to trigger a heap buffer overflow.

3

What is the severity of CVE-2021-21160?

The severity of CVE-2021-21160 is not specified.

4

Which versions of Google Chrome are affected by CVE-2021-21160?

Google Chrome versions prior to 89.0.4389.72 are affected by CVE-2021-21160.

5

How do I fix CVE-2021-21160?

To fix CVE-2021-21160, update to Google Chrome version 89.0.4389.72 or later.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203