# CVE-2023-28162: Mozilla Firefox and 4 others: Access of Resource Using Incompatible Type ('Type Confusion')

CVE-2023-28162 is fixed in 14 products on 2 platforms, first by firefox 111.0+build2-0ubuntu0.18.04.1, released March 14, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-28162
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0070
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 14, 2023
- Weakness: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-28162

## Description

While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox (en-US) | 111.0 | [Mozilla Firefox (en-US) 111.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-111.0.md) | Mar 16, 2023 |
| 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) | 115.8.0 | [Mozilla Thunderbird (en-US) 115.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-115.8.0.md) | Feb 21, 2024 |
| Linux | firefox RHEL 8 | 0:102.9.0-3.el8_7 | [RHSA-2023:1336](https://patchblox.com/security/data/fix/linux/rhsa-2023-1336.md) | Mar 20, 2023 |
| Linux | firefox RHEL 9 | 0:102.9.0-3.el9_1 | [RHSA-2023:1337](https://patchblox.com/security/data/fix/linux/rhsa-2023-1337.md) | Mar 20, 2023 |
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 111.0+build2-0ubuntu0.18.04.1 | [firefox 111.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-111.0-build2-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | firefox Ubuntu 20.04 LTS (focal) | 111.0+build2-0ubuntu0.20.04.1 | [firefox 111.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-111.0-build2-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | firefox almalinux 8 | 102.9.0-3.el8_7.alma | [ALSA-2023:1336](https://patchblox.com/security/data/fix/linux/alsa-2023-1336.md) | Mar 20, 2023 |
| Linux | firefox almalinux 9 | 102.9.0-3.el9_1.alma | [ALSA-2023:1337](https://patchblox.com/security/data/fix/linux/alsa-2023-1337.md) | Mar 20, 2023 |
| Linux | firefox ol 8 | 0:102.9.0-3.0.1.el8_7 | [ELSA-2023-1336](https://patchblox.com/security/data/fix/linux/elsa-2023-1336.md) | Mar 20, 2023 |
| Linux | firefox ol 9 | 0:102.9.0-3.0.1.el9_1 | [ELSA-2023-1337](https://patchblox.com/security/data/fix/linux/elsa-2023-1337.md) | Mar 20, 2023 |
| Linux | firefox rocky 8 | 0:102.9.0-3.el8_7 | [RLSA-2023:1336](https://patchblox.com/security/data/fix/linux/rlsa-2023-1336.md) | Mar 28, 2023 |
| Linux | firefox rocky 9 | 0:102.9.0-3.el9_1 | [RLSA-2023:1337](https://patchblox.com/security/data/fix/linux/rlsa-2023-1337.md) | Apr 6, 2023 |
| Linux | firefox-esr Debian 12.15 (bookworm) | 102.9.0esr-1 | [DEBIAN-CVE-2023-28162](https://patchblox.com/security/data/fix/linux/debian-cve-2023-28162.md) | Jun 2, 2023 |
| Linux | firefox-esr Debian 13.5 (trixie) | 102.9.0esr-1 | [DEBIAN-CVE-2023-28162](https://patchblox.com/security/data/fix/linux/debian-cve-2023-28162.md) | Jun 2, 2023 |
| Linux | firefox-esr Debian 14 | 102.9.0esr-1 | [DEBIAN-CVE-2023-28162](https://patchblox.com/security/data/fix/linux/debian-cve-2023-28162.md) | Jun 2, 2023 |
| Linux | firefox-geckodriver Ubuntu 18.04.6 LTS (bionic) | 111.0+build2-0ubuntu0.18.04.1 | [firefox-geckodriver 111.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-geckodriver-111.0-build2-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 111.0+build2-0ubuntu0.20.04.1 | [firefox-geckodriver 111.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-111.0-build2-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 111.0+build2-0ubuntu0.18.04.1 | [firefox-mozsymbols 111.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-111.0-build2-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 111.0+build2-0ubuntu0.20.04.1 | [firefox-mozsymbols 111.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-111.0-build2-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | firefox-x11 RHEL 9 | 0:102.9.0-3.el9_1 | [RHSA-2023:1337](https://patchblox.com/security/data/fix/linux/rhsa-2023-1337.md) | Mar 20, 2023 |
| Linux | firefox-x11 almalinux 9 | 102.9.0-3.el9_1.alma | [ALSA-2023:1337](https://patchblox.com/security/data/fix/linux/alsa-2023-1337.md) | Mar 20, 2023 |
| Linux | firefox-x11 ol 9 | 0:102.9.0-3.0.1.el9_1 | [ELSA-2023-1337](https://patchblox.com/security/data/fix/linux/elsa-2023-1337.md) | Mar 20, 2023 |
| Linux | thunderbird Debian 12.15 (bookworm) | 1:102.9.0-1 | [DEBIAN-CVE-2023-28162](https://patchblox.com/security/data/fix/linux/debian-cve-2023-28162.md) | Jun 2, 2023 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:102.9.0-1 | [DEBIAN-CVE-2023-28162](https://patchblox.com/security/data/fix/linux/debian-cve-2023-28162.md) | Jun 2, 2023 |
| Linux | thunderbird Debian 14 | 1:102.9.0-1 | [DEBIAN-CVE-2023-28162](https://patchblox.com/security/data/fix/linux/debian-cve-2023-28162.md) | Jun 2, 2023 |
| Linux | thunderbird RHEL 8 | 0:102.9.0-1.el8_7 | [RHSA-2023:1403](https://patchblox.com/security/data/fix/linux/rhsa-2023-1403.md) | Mar 22, 2023 |
| Linux | thunderbird RHEL 9 | 0:102.9.0-1.el9_1 | [RHSA-2023:1407](https://patchblox.com/security/data/fix/linux/rhsa-2023-1407.md) | Mar 22, 2023 |
| Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:102.9.0+build1-0ubuntu0.18.04.1 | [thunderbird 1:102.9.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-102.9.0-build1-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | thunderbird Ubuntu 20.04 LTS (focal) | 1:102.9.0+build1-0ubuntu0.20.04.1 | [thunderbird 1:102.9.0+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-1-102.9.0-build1-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | thunderbird Ubuntu 22.04.1 LTS (jammy) | 1:102.9.0+build1-0ubuntu0.22.04.1 | [thunderbird 1:102.9.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-1-102.9.0-build1-0ubuntu0.22.04.1.md) | Mar 14, 2023 |
| Linux | thunderbird almalinux 8 | 102.9.0-1.el8_7.alma | [ALSA-2023:1403](https://patchblox.com/security/data/fix/linux/alsa-2023-1403.md) | Mar 22, 2023 |
| Linux | thunderbird almalinux 9 | 102.9.0-1.el9_1.alma | [ALSA-2023:1407](https://patchblox.com/security/data/fix/linux/alsa-2023-1407.md) | Mar 22, 2023 |
| Linux | thunderbird ol 8 | 0:102.9.0-1.0.1.el8_7 | [ELSA-2023-1403](https://patchblox.com/security/data/fix/linux/elsa-2023-1403.md) | Mar 22, 2023 |
| Linux | thunderbird ol 9 | 0:102.9.0-1.0.1.el9_1 | [ELSA-2023-1407](https://patchblox.com/security/data/fix/linux/elsa-2023-1407.md) | Mar 22, 2023 |
| Linux | thunderbird rocky 8 | 0:102.9.0-1.el8_7 | [RLSA-2023:1403](https://patchblox.com/security/data/fix/linux/rlsa-2023-1403.md) | Mar 28, 2023 |
| Linux | thunderbird rocky 9 | 0:102.9.0-1.el9_1 | [RLSA-2023:1407](https://patchblox.com/security/data/fix/linux/rlsa-2023-1407.md) | Mar 28, 2023 |
| Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:102.9.0+build1-0ubuntu0.18.04.1 | [thunderbird-gnome-support 1:102.9.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-102.9.0-build1-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | thunderbird-gnome-support Ubuntu 20.04 LTS (focal) | 1:102.9.0+build1-0ubuntu0.20.04.1 | [thunderbird-gnome-support 1:102.9.0+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-102.9.0-build1-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | thunderbird-gnome-support Ubuntu 22.04.1 LTS (jammy) | 1:102.9.0+build1-0ubuntu0.22.04.1 | [thunderbird-gnome-support 1:102.9.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-gnome-support-1-102.9.0-build1-0ubuntu0.22.04.1.md) | Mar 14, 2023 |
| Linux | thunderbird-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 1:102.9.0+build1-0ubuntu0.18.04.1 | [thunderbird-mozsymbols 1:102.9.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-102.9.0-build1-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | thunderbird-mozsymbols Ubuntu 20.04 LTS (focal) | 1:102.9.0+build1-0ubuntu0.20.04.1 | [thunderbird-mozsymbols 1:102.9.0+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-102.9.0-build1-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | thunderbird-mozsymbols Ubuntu 22.04.1 LTS (jammy) | 1:102.9.0+build1-0ubuntu0.22.04.1 | [thunderbird-mozsymbols 1:102.9.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-mozsymbols-1-102.9.0-build1-0ubuntu0.22.04.1.md) | Mar 14, 2023 |
| Linux | xul-ext-calendar-timezones Ubuntu 18.04.6 LTS (bionic) | 1:102.9.0+build1-0ubuntu0.18.04.1 | [xul-ext-calendar-timezones 1:102.9.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-102.9.0-build1-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | xul-ext-calendar-timezones Ubuntu 20.04 LTS (focal) | 1:102.9.0+build1-0ubuntu0.20.04.1 | [xul-ext-calendar-timezones 1:102.9.0+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-102.9.0-build1-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | xul-ext-calendar-timezones Ubuntu 22.04.1 LTS (jammy) | 1:102.9.0+build1-0ubuntu0.22.04.1 | [xul-ext-calendar-timezones 1:102.9.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-calendar-timezones-1-102.9.0-build1-0ubuntu0.22.04.1.md) | Mar 14, 2023 |
| Linux | xul-ext-gdata-provider Ubuntu 18.04.6 LTS (bionic) | 1:102.9.0+build1-0ubuntu0.18.04.1 | [xul-ext-gdata-provider 1:102.9.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-102.9.0-build1-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | xul-ext-gdata-provider Ubuntu 20.04 LTS (focal) | 1:102.9.0+build1-0ubuntu0.20.04.1 | [xul-ext-gdata-provider 1:102.9.0+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-102.9.0-build1-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | xul-ext-gdata-provider Ubuntu 22.04.1 LTS (jammy) | 1:102.9.0+build1-0ubuntu0.22.04.1 | [xul-ext-gdata-provider 1:102.9.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-gdata-provider-1-102.9.0-build1-0ubuntu0.22.04.1.md) | Mar 14, 2023 |
| Linux | xul-ext-lightning Ubuntu 18.04.6 LTS (bionic) | 1:102.9.0+build1-0ubuntu0.18.04.1 | [xul-ext-lightning 1:102.9.0+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-102.9.0-build1-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | xul-ext-lightning Ubuntu 20.04 LTS (focal) | 1:102.9.0+build1-0ubuntu0.20.04.1 | [xul-ext-lightning 1:102.9.0+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-lightning-1-102.9.0-build1-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | xul-ext-lightning Ubuntu 22.04.1 LTS (jammy) | 1:102.9.0+build1-0ubuntu0.22.04.1 | [xul-ext-lightning 1:102.9.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-lightning-1-102.9.0-build1-0ubuntu0.22.04.1.md) | Mar 14, 2023 |

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