En resumen
- CVE-2023-45129 es una vulnerabilidad MEDIO (CVSS 4.9) que afecta a matrix-synapse, synapse (matrix).
- Probabilidad de explotación en los próximos 30 días (EPSS): 1.4%, mayor que el 72.4% de las vulnerabilidades.
- Solución: actualizar a 1.94.0 o posterior.
Description
Impact
A malicious server ACL event can impact performance temporarily or permanently leading to a persistent denial of service.
Homeservers running on a closed federation (which presumably do not need to use server ACLs) are not affected.
Patches
Server administrators are advised to upgrade to Synapse 1.94.0 or later.
Workarounds
Rooms with malicious server ACL events can be purged and blocked using the admin API.
NVD description
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Prior to version 1.94.0, a malicious server ACL event can impact performance temporarily or permanently leading to a persistent denial of service. Homeservers running on a closed federation (which presumably do not need to use server ACLs) are not affected. Server administrators are advised to upgrade to Synapse 1.94.0 or later. As a workaround, rooms with malicious server ACL events can be purged and blocked using the admin API.
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