CVE-2021-37979: Heap buffer overflow in WebRTC

Published Sep 7, 2021
·
Updated

heap buffer overflow in WebRTC in Google Chrome prior to 94.0.4606.81 allowed a remote attacker who convinced a user to browse to a malicious website to potentially exploit heap corruption via a crafted HTML page.

Credit

Marcin Towalski(Cisco Talos)

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

Sep 7, 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-2021-37979?

The severity of CVE-2021-37979 is classified as high due to the potential for remote code execution.

2

How do I fix CVE-2021-37979?

To fix CVE-2021-37979, update Google Chrome to version 94.0.4606.81 or later.

3

Which versions of Google Chrome are affected by CVE-2021-37979?

CVE-2021-37979 affects Google Chrome versions prior to 94.0.4606.81.

4

Can CVE-2021-37979 be exploited over the internet?

Yes, CVE-2021-37979 can be exploited by convincing a user to visit a malicious website.

5

What type of vulnerability is CVE-2021-37979?

CVE-2021-37979 is a heap buffer overflow vulnerability in WebRTC.

Contact

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