Linux Distros Unpatched Vulnerability : CVE-2021-21274

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Synapse is a Matrix reference homeserver written in python pypi package matrix-synapse. Matrix is an ecosystem for open federated Instant Messaging and VoIP. In...

GHSA-MP92-3JFM-3575 Synapse vulnerable to leak of remote user device information

Impact Cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver. Patches System administrators are encouraged to upgrade to Synapse 1.95.1 as soon as possible. Workarounds The federationdomainwhitelist can be used ...

CVE-2023-43796

Synapse is an open-source Matrix homeserver Prior to versions 1.95.1 and 1.96.0rc1, cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver. System administrators are encouraged to upgrade to Synapse 1.95.1 or...

PT-2023-28988 · Synapse +2 · Synapse +2

Name of the Vulnerable Software and Affected Versions: Synapse versions prior to 1.95.1 and 1.96.0rc1 Description: Synapse is an open-source Matrix homeserver. Prior to versions 1.95.1 and 1.96.0rc1, cached device information of remote users can be queried from Synapse. This can be used to...

PT-2023-13722 · Synapse +2 · Synapse +2

Name of the Vulnerable Software and Affected Versions: Synapse versions prior to 1.68.0 Description: The issue occurs when 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...

PT-2023-13719 · Synapse +2 · Synapse +2

Name of the Vulnerable Software and Affected Versions: Synapse versions up to and including 1.68.0 Description: The Matrix Federation API in Synapse allows remote homeservers to request authorization events in a room, which is necessary for validating the legitimacy and permission of events...

PT-2021-14381 · Synapse +1 · Synapse +1

Name of the Vulnerable Software and Affected Versions: Synapse versions prior to 1.25.0 Description: A malicious homeserver could redirect requests to their .well-known file to a large file, leading to a denial of service attack where homeservers consume significantly more resources when requesti...