CVE-2021-37963: channel information leakage in DevTools

Published Apr 16, 2021
·
Updated

Side-channel information leakage in DevTools in Google Chrome prior to 94.0.4606.54 allowed a remote attacker to bypass site isolation via a crafted HTML page.

Credit

Daniel Genkin(Michigan), Ayush Agarwal(Michigan), University(Michigan), Eyal Ronen(Adelaide), Shaked Yehezkel(Adelaide), Tel Aviv University(Adelaide), Sioli O’Connell(Adelaide), University(Adelaide), (Technology), Jason Kim(Technology), Georgia Institute(Technology)

Affected Software

7 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<94.0.4606.54
94.0.4606.54
Google Chrome<94.0.4606.54
Fedoraproject Fedora=33
Fedoraproject Fedora=35
Debian Debian Linux=10.0
Debian Debian Linux=11.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed 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 94.0.4606.54

Event History

Apr 16, 2021
CVE Published
12:00 AM
Oct 8, 2021
CVE Published
via MITRE·09:30 PM
Data Sourced
via MITRE·09:30 PM
DescriptionWeakness
Data Sourced
via NVD·10:15 PM
DescriptionSeverityAffected Software

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 the severity of CVE-2021-37963?

CVE-2021-37963 is classified as a medium severity vulnerability allowing side-channel information leakage.

2

How do I fix CVE-2021-37963?

To remediate CVE-2021-37963, upgrade Google Chrome to version 94.0.4606.54 or later.

3

Which versions of Chrome are affected by CVE-2021-37963?

CVE-2021-37963 affects all Google Chrome versions prior to 94.0.4606.54.

4

What attack vector does CVE-2021-37963 exploit?

CVE-2021-37963 can be exploited through a crafted HTML page to circumvent site isolation.

5

Are any Debian versions impacted by CVE-2021-37963?

Yes, Debian versions using Chromium versions up to 90.0.4430.212-1~deb10u1 are vulnerable to CVE-2021-37963.

Company

Resources

Contact

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