# CVE-2021-4079: chromium: Out of bounds write in WebRTC in Google Chrome prior to 96.0.4664.93 allowed a remote attacker to potentially exploit...

CVE-2021-4079 is fixed in 6 products on 1 platform, first by DEBIAN-CVE-2021-4079, released December 23, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-4079
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0088
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 22, 2021

## Description

Out of bounds write in WebRTC in Google Chrome prior to 96.0.4664.93 allowed a remote attacker to potentially exploit heap corruption via crafted WebRTC packets.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | chromium Debian 12.15 (bookworm) | 97.0.4692.71-0.1 | [DEBIAN-CVE-2021-4079](https://patchblox.com/security/data/fix/linux/debian-cve-2021-4079.md) | Dec 23, 2021 |
| Linux | chromium Debian 13.5 (trixie) | 97.0.4692.71-0.1 | [DEBIAN-CVE-2021-4079](https://patchblox.com/security/data/fix/linux/debian-cve-2021-4079.md) | Dec 23, 2021 |
| Linux | chromium Debian 14 | 97.0.4692.71-0.1 | [DEBIAN-CVE-2021-4079](https://patchblox.com/security/data/fix/linux/debian-cve-2021-4079.md) | Dec 23, 2021 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-browser-97.0.4692.71-0ubuntu0.18.04.1.md) | Jan 2, 2023 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-browser-l10n-97.0.4692.71-0ubuntu0.18.04.1.md) | Jan 2, 2023 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-chromedriver-97.0.4692.71-0ubuntu0.18.04.1.md) | Jan 2, 2023 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-97.0.4692.71-0ubuntu0.18.04.1.md) | Jan 2, 2023 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-extra-97.0.4692.71-0ubuntu0.18.04.1.md) | Jan 2, 2023 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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