Synapse Denial of service due to incorrect application of event authorization rules during state resolution
Summary
Synapse Denial of service due to incorrect application of event authorization rules during state resolution
Original description
The description as published by the source.
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the same room, the malicious homeserver can trick Synapse into accepting previously rejected events into its view of the current state of that room. This can be exploited in a way that causes all further messages and state changes sent in that room from the vulnerable homeserver to be rejected. This issue has been patched in version 1.68.0
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2022-39374 matrix-synapse Fixed in: 1.68.0-1
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web lists.fedoraproject.org