# CVE-2022-46882: Mozilla Firefox and 4 others: Use After Free

CVE-2022-46882 is fixed in 11 products on 2 platforms, first by Mozilla Firefox (en-US) 107.0, released November 15, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-46882
- Priority: High
- CVSS: 9.8 (Important)
- EPSS: 0.0098
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 15, 2022
- Weakness: CWE-416: Use After Free
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-46882

## Description

A use-after-free in WebGL extensions could have led to a potentially exploitable crash. This vulnerability affects Firefox < 107, Firefox ESR < 102.6, and Thunderbird < 102.6.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox (en-US) | 107.0 | [Mozilla Firefox (en-US) 107.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-107.0.md) | Nov 15, 2022 |
| Windows apps | Mozilla Firefox ESR (en-US) | 115.4.0 | [Mozilla Firefox ESR (en-US) 115.4.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-115.4.0.md) | Oct 17, 2023 |
| Windows apps | Mozilla Thunderbird (en-US) | 102.6.0 | [Mozilla Thunderbird (en-US) 102.6.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-102.6.0.md) | Dec 12, 2022 |
| Linux | firefox RHEL 8 | 0:102.6.0-1.el8_7 | [RHSA-2022:9067](https://patchblox.com/security/data/fix/linux/rhsa-2022-9067.md) | Dec 15, 2022 |
| Linux | firefox RHEL 9 | 0:102.6.0-1.el9_1 | [RHSA-2022:9065](https://patchblox.com/security/data/fix/linux/rhsa-2022-9065.md) | Dec 15, 2022 |
| Linux | firefox almalinux 8 | 102.6.0-1.el8_7.alma | [ALSA-2022:9067](https://patchblox.com/security/data/fix/linux/alsa-2022-9067.md) | Dec 15, 2022 |
| Linux | firefox almalinux 9 | 102.6.0-1.el9_1.alma | [ALSA-2022:9065](https://patchblox.com/security/data/fix/linux/alsa-2022-9065.md) | Dec 15, 2022 |
| Linux | firefox ol 8 | 0:102.6.0-1.0.1.el8_7 | [ELSA-2022-9067-1](https://patchblox.com/security/data/fix/linux/elsa-2022-9067-1.md) | Dec 16, 2022 |
| Linux | firefox ol 9 | 0:102.6.0-1.0.1.el9_1 | [ELSA-2022-9065-1](https://patchblox.com/security/data/fix/linux/elsa-2022-9065-1.md) | Dec 16, 2022 |
| Linux | firefox rocky 8 | 0:102.6.0-1.el8_7 | [RLSA-2022:9067](https://patchblox.com/security/data/fix/linux/rlsa-2022-9067.md) | Dec 15, 2022 |
| Linux | firefox-esr Debian 12.15 (bookworm) | 102.6.0esr-1 | [DEBIAN-CVE-2022-46882](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46882.md) | Dec 22, 2022 |
| Linux | firefox-esr Debian 13.5 (trixie) | 102.6.0esr-1 | [DEBIAN-CVE-2022-46882](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46882.md) | Dec 22, 2022 |
| Linux | firefox-esr Debian 14 | 102.6.0esr-1 | [DEBIAN-CVE-2022-46882](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46882.md) | Dec 22, 2022 |
| Linux | thunderbird Debian 12.15 (bookworm) | 1:102.6.0-1 | [DEBIAN-CVE-2022-46882](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46882.md) | Dec 22, 2022 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:102.6.0-1 | [DEBIAN-CVE-2022-46882](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46882.md) | Dec 22, 2022 |
| Linux | thunderbird Debian 14 | 1:102.6.0-1 | [DEBIAN-CVE-2022-46882](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46882.md) | Dec 22, 2022 |
| Linux | thunderbird RHEL 8 | 0:102.6.0-2.el8_7 | [RHSA-2022:9074](https://patchblox.com/security/data/fix/linux/rhsa-2022-9074.md) | Dec 15, 2022 |
| Linux | thunderbird RHEL 9 | 0:102.6.0-2.el9_1 | [RHSA-2022:9080](https://patchblox.com/security/data/fix/linux/rhsa-2022-9080.md) | Dec 15, 2022 |
| Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:102.7.1+build2-0ubuntu0.18.04.1 | [thunderbird 1:102.7.1+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-102.7.1-build2-0ubuntu0.18.04.1.md) | Jan 17, 2023 |
| Linux | thunderbird Ubuntu 20.04 LTS (focal) | 1:102.7.1+build2-0ubuntu0.20.04.1 | [thunderbird 1:102.7.1+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-1-102.7.1-build2-0ubuntu0.20.04.1.md) | Jan 17, 2023 |
| Linux | thunderbird Ubuntu 22.04.1 LTS (jammy) | 1:102.7.1+build2-0ubuntu0.22.04.1 | [thunderbird 1:102.7.1+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-1-102.7.1-build2-0ubuntu0.22.04.1.md) | Jan 17, 2023 |
| Linux | thunderbird almalinux 8 | 102.6.0-2.el8_7.alma | [ALSA-2022:9074](https://patchblox.com/security/data/fix/linux/alsa-2022-9074.md) | Dec 15, 2022 |
| Linux | thunderbird almalinux 9 | 102.6.0-2.el9_1.alma | [ALSA-2022:9080](https://patchblox.com/security/data/fix/linux/alsa-2022-9080.md) | Dec 15, 2022 |
| Linux | thunderbird ol 8 | 0:102.6.0-2.0.1.el8_7 | [ELSA-2022-9074-1](https://patchblox.com/security/data/fix/linux/elsa-2022-9074-1.md) | Dec 16, 2022 |
| Linux | thunderbird ol 9 | 0:102.6.0-2.0.1.el9_1 | [ELSA-2022-9080-1](https://patchblox.com/security/data/fix/linux/elsa-2022-9080-1.md) | Dec 16, 2022 |
| Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:102.7.1+build2-0ubuntu0.18.04.1 | [thunderbird-gnome-support 1:102.7.1+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-102.7.1-build2-0ubuntu0.18.04.1.md) | Jan 17, 2023 |
| Linux | thunderbird-gnome-support Ubuntu 20.04 LTS (focal) | 1:102.7.1+build2-0ubuntu0.20.04.1 | [thunderbird-gnome-support 1:102.7.1+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-102.7.1-build2-0ubuntu0.20.04.1.md) | Jan 17, 2023 |
| Linux | thunderbird-gnome-support Ubuntu 22.04.1 LTS (jammy) | 1:102.7.1+build2-0ubuntu0.22.04.1 | [thunderbird-gnome-support 1:102.7.1+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-gnome-support-1-102.7.1-build2-0ubuntu0.22.04.1.md) | Jan 17, 2023 |
| Linux | thunderbird-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 1:102.7.1+build2-0ubuntu0.18.04.1 | [thunderbird-mozsymbols 1:102.7.1+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-102.7.1-build2-0ubuntu0.18.04.1.md) | Jan 17, 2023 |
| Linux | thunderbird-mozsymbols Ubuntu 20.04 LTS (focal) | 1:102.7.1+build2-0ubuntu0.20.04.1 | [thunderbird-mozsymbols 1:102.7.1+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-102.7.1-build2-0ubuntu0.20.04.1.md) | Jan 17, 2023 |
| Linux | thunderbird-mozsymbols Ubuntu 22.04.1 LTS (jammy) | 1:102.7.1+build2-0ubuntu0.22.04.1 | [thunderbird-mozsymbols 1:102.7.1+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-mozsymbols-1-102.7.1-build2-0ubuntu0.22.04.1.md) | Jan 17, 2023 |
| Linux | xul-ext-calendar-timezones Ubuntu 18.04.6 LTS (bionic) | 1:102.7.1+build2-0ubuntu0.18.04.1 | [xul-ext-calendar-timezones 1:102.7.1+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-102.7.1-build2-0ubuntu0.18.04.1.md) | Jan 17, 2023 |
| Linux | xul-ext-calendar-timezones Ubuntu 20.04 LTS (focal) | 1:102.7.1+build2-0ubuntu0.20.04.1 | [xul-ext-calendar-timezones 1:102.7.1+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-102.7.1-build2-0ubuntu0.20.04.1.md) | Jan 17, 2023 |
| Linux | xul-ext-calendar-timezones Ubuntu 22.04.1 LTS (jammy) | 1:102.7.1+build2-0ubuntu0.22.04.1 | [xul-ext-calendar-timezones 1:102.7.1+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-calendar-timezones-1-102.7.1-build2-0ubuntu0.22.04.1.md) | Jan 17, 2023 |
| Linux | xul-ext-gdata-provider Ubuntu 18.04.6 LTS (bionic) | 1:102.7.1+build2-0ubuntu0.18.04.1 | [xul-ext-gdata-provider 1:102.7.1+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-102.7.1-build2-0ubuntu0.18.04.1.md) | Jan 17, 2023 |
| Linux | xul-ext-gdata-provider Ubuntu 20.04 LTS (focal) | 1:102.7.1+build2-0ubuntu0.20.04.1 | [xul-ext-gdata-provider 1:102.7.1+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-102.7.1-build2-0ubuntu0.20.04.1.md) | Jan 17, 2023 |
| Linux | xul-ext-gdata-provider Ubuntu 22.04.1 LTS (jammy) | 1:102.7.1+build2-0ubuntu0.22.04.1 | [xul-ext-gdata-provider 1:102.7.1+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-gdata-provider-1-102.7.1-build2-0ubuntu0.22.04.1.md) | Jan 17, 2023 |
| Linux | xul-ext-lightning Ubuntu 18.04.6 LTS (bionic) | 1:102.7.1+build2-0ubuntu0.18.04.1 | [xul-ext-lightning 1:102.7.1+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-102.7.1-build2-0ubuntu0.18.04.1.md) | Jan 17, 2023 |
| Linux | xul-ext-lightning Ubuntu 20.04 LTS (focal) | 1:102.7.1+build2-0ubuntu0.20.04.1 | [xul-ext-lightning 1:102.7.1+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-lightning-1-102.7.1-build2-0ubuntu0.20.04.1.md) | Jan 17, 2023 |
| Linux | xul-ext-lightning Ubuntu 22.04.1 LTS (jammy) | 1:102.7.1+build2-0ubuntu0.22.04.1 | [xul-ext-lightning 1:102.7.1+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-lightning-1-102.7.1-build2-0ubuntu0.22.04.1.md) | Jan 17, 2023 |

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