CVE-2023-43796

S

ynapse 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.

Configurations

Configuration 1 (hide)

cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

History

13 Feb 2025, 17:17

Type Values Removed Values Added
Summary (en) 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. (en) 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.

21 Nov 2024, 08:24

Type Values Removed Values Added
References () https://github.com/matrix-org/synapse/commit/daec55e1fe120c564240c5386e77941372bf458f - Patch () https://github.com/matrix-org/synapse/commit/daec55e1fe120c564240c5386e77941372bf458f - Patch
References () https://github.com/matrix-org/synapse/security/advisories/GHSA-mp92-3jfm-3575 - Vendor Advisory () https://github.com/matrix-org/synapse/security/advisories/GHSA-mp92-3jfm-3575 - Vendor Advisory
References () https://lists.fedoraproject.org/archives/list/[email protected]/message/2IDEEZMFJBDLTFHQUTZRJJNCOZGQ2ZVS/ - Mailing List () https://lists.fedoraproject.org/archives/list/[email protected]/message/2IDEEZMFJBDLTFHQUTZRJJNCOZGQ2ZVS/ - Mailing List
References () https://lists.fedoraproject.org/archives/list/[email protected]/message/VH3RNC5ZPQZ4OKPSL4E6BBJSZOQLGDEY/ - Mailing List () https://lists.fedoraproject.org/archives/list/[email protected]/message/VH3RNC5ZPQZ4OKPSL4E6BBJSZOQLGDEY/ - Mailing List
References () https://security.gentoo.org/glsa/202401-12 - () https://security.gentoo.org/glsa/202401-12 -

Information

Published : 2023-10-31 17:15

Updated : 2025-02-13 17:17


NVD link : CVE-2023-43796

Mitre link : CVE-2023-43796

CVE.ORG link : CVE-2023-43796


JSON object : View

Products Affected
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

NVD-CWE-noinfo