# CVE-2022-39236: xul-ext-lightning: Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript

CVE-2022-39236 is fixed in 6 products on 1 platform, first by RHSA-2022:7190, released October 25, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-39236
- Priority: High
- CVSS: 8.8 (Medium)
- EPSS: 0.0136
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 28, 2022

## Description

Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Starting with version 17.1.0-rc.1, improperly formed beacon events can disrupt or impede the matrix-js-sdk from functioning properly, potentially impacting the consumer's ability to process data safely. Note that the matrix-js-sdk can appear to be operating normally but be excluding or corrupting runtime data presented to the consumer. This is patched in matrix-js-sdk v19.7.0. Redacting applicable events, waiting for the sync processor to store data, and restarting the client are possible workarounds. Alternatively, redacting the applicable events and clearing all storage will fix the further perceived issues. Downgrading to an unaffected version, noting that such a version may be subject to other vulnerabilities, will additionally resolve the issue.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | thunderbird RHEL 8 | 0:102.4.0-1.el8_6 | [RHSA-2022:7190](https://patchblox.com/security/data/fix/linux/rhsa-2022-7190.md) | Oct 25, 2022 |
| Linux | thunderbird RHEL 9 | 0:102.4.0-1.el9_0 | [RHSA-2022:7178](https://patchblox.com/security/data/fix/linux/rhsa-2022-7178.md) | Oct 25, 2022 |
| Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [thunderbird 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-102.4.2-build2-0ubuntu0.18.04.1.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 almalinux 8 | 102.4.0-1.el8_6.alma | [ALSA-2022:7190](https://patchblox.com/security/data/fix/linux/alsa-2022-7190.md) | Oct 25, 2022 |
| Linux | thunderbird almalinux 9 | 102.4.0-1.el9_0.alma | [ALSA-2022:7178](https://patchblox.com/security/data/fix/linux/alsa-2022-7178.md) | Oct 25, 2022 |
| Linux | thunderbird ol 8 | 0:102.4.0-1.0.1.el8_6 | [ELSA-2022-7190](https://patchblox.com/security/data/fix/linux/elsa-2022-7190.md) | Oct 27, 2022 |
| Linux | thunderbird ol 9 | 0:102.4.0-1.el9_0 | [ELSA-2022-7178](https://patchblox.com/security/data/fix/linux/elsa-2022-7178.md) | Oct 27, 2022 |
| Linux | thunderbird rocky 8 | 0:102.4.0-1.el8_6 | [RLSA-2022:7190](https://patchblox.com/security/data/fix/linux/rlsa-2022-7190.md) | Oct 25, 2022 |
| Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [thunderbird-gnome-support 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-102.4.2-build2-0ubuntu0.18.04.1.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 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [thunderbird-mozsymbols 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-102.4.2-build2-0ubuntu0.18.04.1.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 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [xul-ext-calendar-timezones 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-102.4.2-build2-0ubuntu0.18.04.1.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 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [xul-ext-gdata-provider 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-102.4.2-build2-0ubuntu0.18.04.1.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 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [xul-ext-lightning 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-102.4.2-build2-0ubuntu0.18.04.1.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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