# CVE-2021-30547: Chromium: CVE-2021-30547 Out of bounds write in ANGLE

CVE-2021-30547 is fixed in 16 products on 2 platforms, first by chromium-browser 91.0.4472.101-0ubuntu0.18.04.1, released June 15, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-30547
- Priority: High
- CVSS: 8.8 (Important)
- EPSS: 0.0361
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 11, 2021
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-30547

## Description

<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.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox (en-US) | 97.0 | [Mozilla Firefox (en-US) 97.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-97.0.md) | Feb 8, 2022 |
| Windows apps | Mozilla Firefox ESR (en-US) | 102.0 | [Mozilla Firefox ESR (en-US) 102.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-102.0.md) | Jun 23, 2022 |
| Linux | chromium-browser Ubuntu 18.04.6 LTS (bionic) | 91.0.4472.101-0ubuntu0.18.04.1 | [chromium-browser 91.0.4472.101-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-browser-91.0.4472.101-0ubuntu0.18.04.1.md) | Jun 15, 2021 |
| Linux | chromium-browser-l10n Ubuntu 18.04.6 LTS (bionic) | 91.0.4472.101-0ubuntu0.18.04.1 | [chromium-browser-l10n 91.0.4472.101-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-browser-l10n-91.0.4472.101-0ubuntu0.18.04.1.md) | Jun 15, 2021 |
| Linux | chromium-chromedriver Ubuntu 18.04.6 LTS (bionic) | 91.0.4472.101-0ubuntu0.18.04.1 | [chromium-chromedriver 91.0.4472.101-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-chromedriver-91.0.4472.101-0ubuntu0.18.04.1.md) | Jun 15, 2021 |
| Linux | chromium-codecs-ffmpeg Ubuntu 18.04.6 LTS (bionic) | 91.0.4472.101-0ubuntu0.18.04.1 | [chromium-codecs-ffmpeg 91.0.4472.101-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-91.0.4472.101-0ubuntu0.18.04.1.md) | Jun 15, 2021 |
| Linux | chromium-codecs-ffmpeg-extra Ubuntu 18.04.6 LTS (bionic) | 91.0.4472.101-0ubuntu0.18.04.1 | [chromium-codecs-ffmpeg-extra 91.0.4472.101-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-extra-91.0.4472.101-0ubuntu0.18.04.1.md) | Jun 15, 2021 |
| Linux | firefox RHEL 8 | 0:78.12.0-1.el8_4 | [RHSA-2021:2743](https://patchblox.com/security/data/fix/linux/rhsa-2021-2743.md) | Jul 15, 2021 |
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 90.0+build1-0ubuntu0.18.04.1 | [firefox 90.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-90.0-build1-0ubuntu0.18.04.1.md) | Jul 14, 2021 |
| Linux | firefox Ubuntu 20.04 LTS (focal) | 90.0+build1-0ubuntu0.20.04.1 | [firefox 90.0+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-90.0-build1-0ubuntu0.20.04.1.md) | Jul 14, 2021 |
| Linux | firefox ol 8 | 0:78.12.0-1.0.1.el8_4 | [ELSA-2021-2743](https://patchblox.com/security/data/fix/linux/elsa-2021-2743.md) | Jul 16, 2021 |
| Linux | firefox-geckodriver Ubuntu 18.04.6 LTS (bionic) | 90.0+build1-0ubuntu0.18.04.1 | [firefox-geckodriver 90.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-geckodriver-90.0-build1-0ubuntu0.18.04.1.md) | Jul 14, 2021 |
| Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 90.0+build1-0ubuntu0.20.04.1 | [firefox-geckodriver 90.0+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-90.0-build1-0ubuntu0.20.04.1.md) | Jul 14, 2021 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 90.0+build1-0ubuntu0.18.04.1 | [firefox-mozsymbols 90.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-90.0-build1-0ubuntu0.18.04.1.md) | Jul 14, 2021 |
| Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 90.0+build1-0ubuntu0.20.04.1 | [firefox-mozsymbols 90.0+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-90.0-build1-0ubuntu0.20.04.1.md) | Jul 14, 2021 |
| Linux | thunderbird RHEL 8 | 0:78.12.0-3.el8_4 | [RHSA-2021:2883](https://patchblox.com/security/data/fix/linux/rhsa-2021-2883.md) | Jul 26, 2021 |
| Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:78.13.0+build1-0ubuntu0.18.04.1 | [thunderbird 1:78.13.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-78.13.0-build1-0ubuntu0.18.04.1.md) | Aug 10, 2021 |
| Linux | thunderbird Ubuntu 20.04 LTS (focal) | 1:78.13.0+build1-0ubuntu0.20.04.2 | [thunderbird 1:78.13.0+build1-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-1-78.13.0-build1-0ubuntu0.20.04.2.md) | Aug 10, 2021 |
| Linux | thunderbird ol 8 | 0:78.12.0-3.0.1.el8_4 | [ELSA-2021-2883](https://patchblox.com/security/data/fix/linux/elsa-2021-2883.md) | Jul 27, 2021 |
| Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:78.13.0+build1-0ubuntu0.18.04.1 | [thunderbird-gnome-support 1:78.13.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-78.13.0-build1-0ubuntu0.18.04.1.md) | Aug 10, 2021 |
| Linux | thunderbird-gnome-support Ubuntu 20.04 LTS (focal) | 1:78.13.0+build1-0ubuntu0.20.04.2 | [thunderbird-gnome-support 1:78.13.0+build1-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-78.13.0-build1-0ubuntu0.20.04.2.md) | Aug 10, 2021 |
| Linux | thunderbird-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 1:78.13.0+build1-0ubuntu0.18.04.1 | [thunderbird-mozsymbols 1:78.13.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-78.13.0-build1-0ubuntu0.18.04.1.md) | Aug 10, 2021 |
| Linux | thunderbird-mozsymbols Ubuntu 20.04 LTS (focal) | 1:78.13.0+build1-0ubuntu0.20.04.2 | [thunderbird-mozsymbols 1:78.13.0+build1-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-78.13.0-build1-0ubuntu0.20.04.2.md) | Aug 10, 2021 |
| Linux | xul-ext-calendar-timezones Ubuntu 18.04.6 LTS (bionic) | 1:78.13.0+build1-0ubuntu0.18.04.1 | [xul-ext-calendar-timezones 1:78.13.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-78.13.0-build1-0ubuntu0.18.04.1.md) | Aug 10, 2021 |
| Linux | xul-ext-calendar-timezones Ubuntu 20.04 LTS (focal) | 1:78.13.0+build1-0ubuntu0.20.04.2 | [xul-ext-calendar-timezones 1:78.13.0+build1-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-78.13.0-build1-0ubuntu0.20.04.2.md) | Aug 10, 2021 |
| Linux | xul-ext-gdata-provider Ubuntu 18.04.6 LTS (bionic) | 1:78.13.0+build1-0ubuntu0.18.04.1 | [xul-ext-gdata-provider 1:78.13.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-78.13.0-build1-0ubuntu0.18.04.1.md) | Aug 10, 2021 |
| Linux | xul-ext-gdata-provider Ubuntu 20.04 LTS (focal) | 1:78.13.0+build1-0ubuntu0.20.04.2 | [xul-ext-gdata-provider 1:78.13.0+build1-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-78.13.0-build1-0ubuntu0.20.04.2.md) | Aug 10, 2021 |
| Linux | xul-ext-lightning Ubuntu 18.04.6 LTS (bionic) | 1:78.13.0+build1-0ubuntu0.18.04.1 | [xul-ext-lightning 1:78.13.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-78.13.0-build1-0ubuntu0.18.04.1.md) | Aug 10, 2021 |
| Linux | xul-ext-lightning Ubuntu 20.04 LTS (focal) | 1:78.13.0+build1-0ubuntu0.20.04.2 | [xul-ext-lightning 1:78.13.0+build1-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-lightning-1-78.13.0-build1-0ubuntu0.20.04.2.md) | Aug 10, 2021 |

---

Data as of 2026-11-08T19:12:23Z 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

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.