CVE-2021-30551: Type Confusion in V8

Published Jun 4, 2021
·
Updated

Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Other sources

Type confusion in V8 in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Credit

Clement Lecigne(Google's Threat Analysis Group), Sergei Glazunov(Google Project Zero)

Affected Software

26 affected componentsFixes available
Google Chrome<91.0.4472.101
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Google Chrome<91.0.4472.101
91.0.4472.101
Google Chromium V8
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/chromium<91.0.4472.101-r0
91.0.4472.101-r0
alpine/qt5-qtwebengine<5.15.3_git20211006-r0
5.15.3_git20211006-r0
alpine/qt5-qtwebengine<5.15.3_git20210510-r2
5.15.3_git20210510-r2
alpine/qt5-qtwebengine<5.15.3_git20210510-r2
5.15.3_git20210510-r2
alpine/qt5-qtwebengine<5.15.3_git20210510-r2
5.15.3_git20210510-r2
alpine/qt5-qtwebengine<5.15.3_git20210510-r2
5.15.3_git20210510-r2
alpine/qt5-qtwebengine<5.15.3_git20210510-r2
5.15.3_git20210510-r2
alpine/qt5-qtwebengine<5.15.3_git20210510-r2
5.15.3_git20210510-r2
alpine/qt5-qtwebengine<5.15.3_git20210510-r2
5.15.3_git20210510-r2
alpine/qt5-qtwebengine<5.15.3_git20210510-r2
5.15.3_git20210510-r2
alpine/qt5-qtwebengine<5.15.3_git20210510-r2
5.15.3_git20210510-r2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 91.0.4472.101
  2. Upgrade

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

    Fixed in 91.0.4472.101-r0
  3. Upgrade

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

    Fixed in 5.15.3_git20211006-r0
  4. Upgrade

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

    Fixed in 5.15.3_git20210510-r2

Event History

Jun 4, 2021
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jun 15, 2021
CVE Published
via MITRE·09:40 PM
Data Sourced
via MITRE·09:40 PM
DescriptionWeakness
Data Sourced
via NVD·10:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·10:15 PM
DescriptionSeverityAffected Software
Nov 3, 2021
Data Sourced
via CISA·12:00 AM
DescriptionWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is CVE-2021-30551?

CVE-2021-30551 is a type confusion vulnerability in the Google Chromium V8 Engine.

2

How does CVE-2021-30551 affect web browsers?

CVE-2021-30551 affects web browsers that utilize Chromium, including Google Chrome and Microsoft Edge.

3

What is the severity of CVE-2021-30551?

The severity of CVE-2021-30551 is rated as high with a CVSS score of 8.8.

4

How can an attacker exploit CVE-2021-30551?

An attacker can potentially exploit CVE-2021-30551 by crafting a malicious HTML page to trigger heap corruption.

5

Where can I find more information about CVE-2021-30551?

You can find more information about CVE-2021-30551 at the following references: [link1], [link2], [link3].

Contact

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