CVE-2024-42369
matrix-js-sdk will freeze when a user sets a room with itself as a its predecessor
4.1
MEDIUM
CVSS 3.1
EPSS 0.21%
Description
matrix-js-sdk is a Matrix messaging protocol Client-Server SDK for JavaScript. 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. This was patched in matrix-js-sdk 34.3.1.
How to fix CVE-2024-42369
To remediate CVE-2024-42369, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 34.3.1 or later
Is CVE-2024-42369 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 34.3.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L |
| osv | CVSS 3.1 | MEDIUM4.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:L |