CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
47.7%
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.
Vendor | Product | Version | CPE |
---|---|---|---|
matrix | synapse | * | cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:* |
fedoraproject | fedora | 38 | cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |
fedoraproject | fedora | 39 | cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* |
[
{
"vendor": "matrix-org",
"product": "synapse",
"versions": [
{
"version": "< 1.95.1",
"status": "affected"
}
]
}
]
github.com/matrix-org/synapse/commit/daec55e1fe120c564240c5386e77941372bf458f
github.com/matrix-org/synapse/security/advisories/GHSA-mp92-3jfm-3575
lists.fedoraproject.org/archives/list/[email protected]/message/2IDEEZMFJBDLTFHQUTZRJJNCOZGQ2ZVS/
lists.fedoraproject.org/archives/list/[email protected]/message/VH3RNC5ZPQZ4OKPSL4E6BBJSZOQLGDEY/
security.gentoo.org/glsa/202401-12