CVE-2021-4098: Insufficient data validation in Mojo

Published Oct 26, 2021
·
Updated

Insufficient data validation in Mojo in Google Chrome prior to 96.0.4664.110 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Credit

Sergei Glazunov(Google Project Zero)

Affected Software

3 affected componentsFixes available
debian/chromium<=90.0.4430.212-1~deb10u1
116.0.5845.180-1~deb11u1118.0.5993.70-1~deb11u1116.0.5845.180-1~deb12u1118.0.5993.70-1~deb12u1118.0.5993.70-1
Google Chrome<96.0.4664.110
96.0.4664.110
Google Chrome<96.0.4664.110

Event History

Oct 26, 2021
CVE Published
12:00 AM
Feb 11, 2022
CVE Published
via MITRE·10:55 PM
Data Sourced
via MITRE·10:55 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2021-4098?

CVE-2021-4098 is a vulnerability in Mojo in Google Chrome prior to 96.0.4664.110 that allows a remote attacker who has compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

2

How severe is CVE-2021-4098?

CVE-2021-4098 has a severity score of 7.4 (high).

3

Which software versions are affected by CVE-2021-4098?

Google Chrome versions prior to 96.0.4664.110 and certain versions of chromium package in Debian, including 90.0.4430.212-1~deb10u1.

4

How can I fix CVE-2021-4098?

To fix CVE-2021-4098, update Google Chrome to version 96.0.4664.110 or later, or update the chromium package in Debian to the patched versions mentioned in the Debian security tracker.

5

Where can I find more information about CVE-2021-4098?

You can find more information about CVE-2021-4098 in the references provided: [Chrome Releases Blog](https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html), [Chromium Bug Tracker](https://crbug.com/1263457), [Debian Security Tracker](https://security-tracker.debian.org/tracker/CVE-2021-4098).

Contact

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