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CVE ID:CVE-2023-43796
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 enumerate the remote users known to a homeserver. System administrators are encouraged to upgrade to Synapse 1.95.1 or 1.96.0rc1 to receive a patch. As a workaround, the `federation_domain_whitelist` can be used to limit federation traffic with a homeserver.
Test IDs: 1.3.6.1.4.1.25623.1.0.885247   1.3.6.1.4.1.25623.1.0.885249  
Cross References: Common Vulnerability Exposure (CVE) ID: CVE-2023-43796
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VH3RNC5ZPQZ4OKPSL4E6BBJSZOQLGDEY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2IDEEZMFJBDLTFHQUTZRJJNCOZGQ2ZVS/
https://security.gentoo.org/glsa/202401-12
https://github.com/matrix-org/synapse/commit/daec55e1fe120c564240c5386e77941372bf458f
https://github.com/matrix-org/synapse/commit/daec55e1fe120c564240c5386e77941372bf458f
https://github.com/matrix-org/synapse/security/advisories/GHSA-mp92-3jfm-3575
https://github.com/matrix-org/synapse/security/advisories/GHSA-mp92-3jfm-3575




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