Synapse's V2 state resolution weakness allows DoS from remote room members
Résumé
Synapse's V2 state resolution weakness allows DoS from remote room members
Description d'origine
La description telle que publiée par la source (souvent en anglais).
Synapse is an open-source Matrix homeserver. A remote Matrix user with malicious intent, sharing a room with Synapse instances before 1.105.1, can dispatch specially crafted events to exploit a weakness in the V2 state resolution algorithm. This can induce high CPU consumption and accumulate excessive data in the database of such instances, resulting in a denial of service. Servers in private federations, or those that do not federate, are not affected. Server administrators should upgrade to 1.105.1 or later. Some workarounds are available. One can ban the malicious users or ACL block servers from the rooms and/or leave the room and purge the room using the admin API.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Debian DEBIAN-CVE-2024-31208 matrix-synapse Corrigé dans: 1.103.0-2
- Ubuntu UBUNTU-CVE-2024-31208 synapse
Références
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web github.com
- web lists.fedoraproject.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org