CVE-2021-4102

Chromium: CVE-2021-4102 Use after free in V8

CVE-2021-4102 is fixed in 8 products on 2 platforms, first by DEBIAN-CVE-2021-4102, released February 11, 2022. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on December 15, 2021. Patch Radar priority: Patch now.

Patch nowCISA KEVFixed on 2 platforms

CVSS

8.8

high

Exploitation

Exploited

Reported by the vendor

CISA KEV

Dec 15, 2021

Federal due date Dec 29, 2021

EPSS

0.0784

94th percentile

<p>This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see <a href="https://chromereleases.googleblog.com/2021">Google Chrome Releases</a> for more information. Google is aware of reports that an exploit for CVE-2021-4102 exists in the wild.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Microsoft Edge Beta	127.0.2651.8	Microsoft Edge Beta 127.0.2651.8	Jun 21, 2024
Microsoft Edge Dev	127.0.2651.8	Microsoft Edge Dev 127.0.2651.8	Jun 21, 2024
Linux
chromium · Debian 12.15 (bookworm)	97.0.4692.71-0.1	DEBIAN-CVE-2021-4102	Feb 11, 2022
chromium · Debian 13.5 (trixie)	97.0.4692.71-0.1	DEBIAN-CVE-2021-4102	Feb 11, 2022
chromium · Debian 14	97.0.4692.71-0.1	DEBIAN-CVE-2021-4102	Feb 11, 2022
chromium-browser · Ubuntu 18.04.6 LTS (bionic)	97.0.4692.71-0ubuntu0.18.04.1	chromium-browser 97.0.4692.71-0ubuntu0.18.04.1	Jan 2, 2023
chromium-browser-l10n · Ubuntu 18.04.6 LTS (bionic)	97.0.4692.71-0ubuntu0.18.04.1	chromium-browser-l10n 97.0.4692.71-0ubuntu0.18.04.1	Jan 2, 2023
chromium-chromedriver · Ubuntu 18.04.6 LTS (bionic)	97.0.4692.71-0ubuntu0.18.04.1	chromium-chromedriver 97.0.4692.71-0ubuntu0.18.04.1	Jan 2, 2023
chromium-codecs-ffmpeg · Ubuntu 18.04.6 LTS (bionic)	97.0.4692.71-0ubuntu0.18.04.1	chromium-codecs-ffmpeg 97.0.4692.71-0ubuntu0.18.04.1	Jan 2, 2023
chromium-codecs-ffmpeg-extra · Ubuntu 18.04.6 LTS (bionic)	97.0.4692.71-0ubuntu0.18.04.1	chromium-codecs-ffmpeg-extra 97.0.4692.71-0ubuntu0.18.04.1	Jan 2, 2023

Details

Published
December 14, 2021
Weakness
CWE-416: Use After Free
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA required action
Apply updates per vendor instructions.
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-4102

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