CVE-2021-21179: Use after free in Network Internals

Published Feb 5, 2021
·
Updated

Use after free in Network Internals in Google Chrome on Linux prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Credit

Anonymous

Affected Software

31 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
Linux Linux kernel
Fedoraproject Fedora=32
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Debian Debian Linux=10.0
All of the following
Google Chrome<89.0.4389.72
Linux Linux kernel
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

Feb 5, 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 the severity of CVE-2021-21179?

CVE-2021-21179 is classified as a high-severity vulnerability due to the potential for remote exploitation.

2

How do I fix CVE-2021-21179?

To mitigate CVE-2021-21179, users should update Google Chrome to version 89.0.4389.72 or later.

3

Which versions of Google Chrome are affected by CVE-2021-21179?

Google Chrome versions prior to 89.0.4389.72 on Linux are vulnerable to CVE-2021-21179.

4

Can CVE-2021-21179 be exploited remotely?

Yes, CVE-2021-21179 can be exploited remotely through a crafted HTML page.

5

Is there a workaround for CVE-2021-21179?

There is no known workaround for CVE-2021-21179 other than applying the necessary updates.

Company

Resources

Contact

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