# CVE-2022-46874: Mozilla Firefox and 4 others: Improper Control of Generation of Code ('Code Injection')

CVE-2022-46874 is fixed in 13 products on 2 platforms, first by Mozilla Thunderbird (en-US) 102.6.0, released December 12, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-46874
- Priority: High
- CVSS: 8.8 (Important)
- EPSS: 0.0097
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 13, 2022
- Weakness: CWE-94: Improper Control of Generation of Code ('Code Injection')
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-46874

## Description

A file with a long filename could have had its filename truncated to remove the valid extension, leaving a malicious extension in its place. This could potentially led to user confusion and the execution of malicious code.<br/>*Note*: This issue was originally included in the advisories for Thunderbird 102.6, but a patch (specific to Thunderbird) was omitted, resulting in it actually being fixed in Thunderbird 102.6.1. This vulnerability affects Firefox < 108, Thunderbird < 102.6.1, Thunderbird < 102.6, and Firefox ESR < 102.6.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox (en-US) | 108.0 | [Mozilla Firefox (en-US) 108.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-108.0.md) | Dec 14, 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 Ubuntu 18.04.6 LTS (bionic) | 108.0+build2-0ubuntu0.18.04.1 | [firefox 108.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-108.0-build2-0ubuntu0.18.04.1.md) | Dec 13, 2022 |
| Linux | firefox Ubuntu 20.04 LTS (focal) | 108.0+build2-0ubuntu0.20.04.1 | [firefox 108.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-108.0-build2-0ubuntu0.20.04.1.md) | Dec 13, 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-2022-46874](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46874.md) | Dec 22, 2022 |
| Linux | firefox-esr Debian 13.5 (trixie) | 102.6.0esr-1 | [DEBIAN-CVE-2022-46874](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46874.md) | Dec 22, 2022 |
| Linux | firefox-esr Debian 14 | 102.6.0esr-1 | [DEBIAN-CVE-2022-46874](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46874.md) | Dec 22, 2022 |
| Linux | firefox-geckodriver Ubuntu 18.04.6 LTS (bionic) | 108.0+build2-0ubuntu0.18.04.1 | [firefox-geckodriver 108.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-geckodriver-108.0-build2-0ubuntu0.18.04.1.md) | Dec 13, 2022 |
| Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 108.0+build2-0ubuntu0.20.04.1 | [firefox-geckodriver 108.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-108.0-build2-0ubuntu0.20.04.1.md) | Dec 13, 2022 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 108.0+build2-0ubuntu0.18.04.1 | [firefox-mozsymbols 108.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-108.0-build2-0ubuntu0.18.04.1.md) | Dec 13, 2022 |
| Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 108.0+build2-0ubuntu0.20.04.1 | [firefox-mozsymbols 108.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-108.0-build2-0ubuntu0.20.04.1.md) | Dec 13, 2022 |
| Linux | thunderbird Debian 12.15 (bookworm) | 1:102.6.0-1 | [DEBIAN-CVE-2022-46874](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46874.md) | Dec 22, 2022 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:102.6.0-1 | [DEBIAN-CVE-2022-46874](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46874.md) | Dec 22, 2022 |
| Linux | thunderbird Debian 14 | 1:102.6.0-1 | [DEBIAN-CVE-2022-46874](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46874.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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