CVE-2021-21124: Potential user after free in Speech Recognizer

Published Sep 23, 2020
·
Updated

Potential user after free in Speech Recognizer in Google Chrome on Android prior to 88.0.4324.96 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.

Credit

Chaoyang Ding@@V4kst1z(Codesafe Team of Legendsec at Qi'anxin Group)

Affected Software

3 affected componentsFixes available
Google Chrome<88.0.4324.96
88.0.4324.96
Google Chrome<88.0.4324.96
Microsoft Edge Chromium<88.0.705.50

Event History

Sep 23, 2020
CVE Published
12:00 AM
Feb 9, 2021
CVE Published
via MITRE·01:55 PM
Data Sourced
via MITRE·01:55 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2021-21124?

CVE-2021-21124 is considered a high severity vulnerability due to its potential for sandbox escape.

2

How do I fix CVE-2021-21124?

To fix CVE-2021-21124, update Google Chrome or Microsoft Edge Chromium to version 88.0.4324.96 or higher.

3

What platforms are affected by CVE-2021-21124?

CVE-2021-21124 affects Google Chrome on Android and Microsoft Edge Chromium prior to their respective updated versions.

4

Can CVE-2021-21124 be exploited remotely?

Yes, CVE-2021-21124 can potentially be exploited remotely via a crafted HTML page.

5

What is a sandbox escape in relation to CVE-2021-21124?

A sandbox escape in the context of CVE-2021-21124 refers to the ability of an attacker to break out of the restricted execution environment of the browser.

Contact

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