low3.5
CVE-2023-38700
matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms
Impact
### Impact It was possible to craft an event such that it would leak part of a targeted message event from another bridged room. This required knowing an event ID to target. ### Patches Please upgrade to 1.0.1. ### Workarounds You can set the `matrixHandler.eventCacheSize` config value to `0` to workaround this bug. However, this may impact performance. ### Credits Discovered and reported by [Val Lorentz](https://valentin-lorentz.fr/). ### For more information If you have any questions or comments about this advisory email us at [security@matrix.org](mailto:security@matrix.org).
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | matrix-appservice-irc | <= 1.0.0 | 1.0.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Matrix | Matrix Irc Bridge | before 1.0.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/matrix-org/matrix-appservice-irc/commit/8bbd2b69a16cbcbeffdd9b5c973fd89d61498d75
- https://github.com/matrix-org/matrix-appservice-irc/releases/tag/1.0.1
- https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-c7hh-3v6c-fj4q
- https://github.com/advisories/GHSA-c7hh-3v6c-fj4q
- https://nvd.nist.gov/vuln/detail/CVE-2023-38700