CVE-2024-42369: A room with itself as a its predecessor will freeze matrix-js-sdk
First published: Tue Aug 20 2024(Updated: )
### Impact A malicious homeserver can craft a room or room structure such that the predecessors form a cycle. The matrix-js-sdk's `getRoomUpgradeHistory` function will infinitely recurse in this case, causing the code to hang. This method is public but also called by the 'leaveRoomChain()' method, so leaving a room will also trigger the bug. Even if the CVSS score would be 4.1 ([AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:L](https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:L&version=3.1)) we classify this as High severity issue. ### Patches This was patched in matrix-js-sdk 34.3.1. ### Workarounds Sanity check rooms before passing them to the matrix-js-sdk or avoid calling either `getRoomUpgradeHistory` or `leaveRoomChain`. ### References N/A.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| npm/matrix-js-sdk | <34.3.1 | 34.3.1 |
| Matrix Javascript SDK | <34.3.1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-42369?
CVE-2024-42369 is considered a high severity vulnerability due to its potential to cause infinite recursion and hang the application.
How do I fix CVE-2024-42369?
To fix CVE-2024-42369, update the matrix-js-sdk to version 34.3.1 or later.
What versions of matrix-js-sdk are affected by CVE-2024-42369?
CVE-2024-42369 affects all versions of matrix-js-sdk prior to 34.3.1.
What is the impact of CVE-2024-42369?
The impact of CVE-2024-42369 is that a malicious homeserver can create a cyclic room structure causing the application to hang.
Is CVE-2024-42369 specific to any software?
Yes, CVE-2024-42369 specifically affects the matrix-js-sdk used in JavaScript environments.
- agent/weakness
- agent/title
- agent/type
- agent/first-publish-date
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-vhr5-g3pm-49fm
- alias/CVE-2024-42369
- agent/software-canonical-lookup
- agent/author
- agent/references
- agent/description
- agent/severity
- agent/remedy
- agent/softwarecombine
- agent/event
- collector/github-advisory
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- agent/source
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-cve
- package-manager/npm
- vendor/matrix
- canonical/matrix javascript sdk