# CVE-2022-42930: Mozilla Firefox and 2 others: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVE-2022-42930 is fixed in 11 products on 2 platforms, first by Mozilla Firefox (en-US) 106.0, released October 19, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-42930
- Priority: High
- CVSS: 7.1 (Medium)
- EPSS: 0.0042
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 26, 2022
- Weakness: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-42930

## Description

If two Workers were simultaneously initializing their CacheStorage, a data race could have occurred in the `ThirdPartyUtil` component. This vulnerability affects Firefox < 106.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox (en-US) | 106.0 | [Mozilla Firefox (en-US) 106.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-106.0.md) | Oct 19, 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 |
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 106.0.2+build1-0ubuntu0.18.04.1 | [firefox 106.0.2+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-106.0.2-build1-0ubuntu0.18.04.1.md) | Oct 26, 2022 |
| Linux | firefox Ubuntu 20.04 LTS (focal) | 106.0.2+build1-0ubuntu0.20.04.1 | [firefox 106.0.2+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-106.0.2-build1-0ubuntu0.20.04.1.md) | Oct 26, 2022 |
| Linux | firefox-geckodriver Ubuntu 18.04.6 LTS (bionic) | 106.0.2+build1-0ubuntu0.18.04.1 | [firefox-geckodriver 106.0.2+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-geckodriver-106.0.2-build1-0ubuntu0.18.04.1.md) | Oct 26, 2022 |
| Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 106.0.2+build1-0ubuntu0.20.04.1 | [firefox-geckodriver 106.0.2+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-106.0.2-build1-0ubuntu0.20.04.1.md) | Oct 26, 2022 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 106.0.2+build1-0ubuntu0.18.04.1 | [firefox-mozsymbols 106.0.2+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-106.0.2-build1-0ubuntu0.18.04.1.md) | Oct 26, 2022 |
| Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 106.0.2+build1-0ubuntu0.20.04.1 | [firefox-mozsymbols 106.0.2+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-106.0.2-build1-0ubuntu0.20.04.1.md) | Oct 26, 2022 |
| Linux | thunderbird Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [thunderbird 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 |
| Linux | thunderbird Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [thunderbird 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 |
| Linux | thunderbird-gnome-support Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [thunderbird-gnome-support 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 |
| Linux | thunderbird-gnome-support Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [thunderbird-gnome-support 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-gnome-support-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 |
| Linux | thunderbird-mozsymbols Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [thunderbird-mozsymbols 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 |
| Linux | thunderbird-mozsymbols Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [thunderbird-mozsymbols 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-mozsymbols-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 |
| Linux | xul-ext-calendar-timezones Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [xul-ext-calendar-timezones 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 |
| Linux | xul-ext-calendar-timezones Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [xul-ext-calendar-timezones 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-calendar-timezones-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 |
| Linux | xul-ext-gdata-provider Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [xul-ext-gdata-provider 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 |
| Linux | xul-ext-gdata-provider Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [xul-ext-gdata-provider 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-gdata-provider-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 |
| Linux | xul-ext-lightning Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [xul-ext-lightning 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-lightning-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 |
| Linux | xul-ext-lightning Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [xul-ext-lightning 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-lightning-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 |

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