CVE-2023-32323

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with federation disabled are not affected. In versions of Synapse up to and including 1.73, Synapse did not limit the size of `invite_room_state`, meaning that it was possible to create an arbitrarily large invite event. Synapse 1.74 refuses to create oversized `invite_room_state` fields. Server operators should upgrade to Synapse 1.74 or newer urgently.
Configurations

Configuration 1 (hide)

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

History

18 Sep 2023, 04:15

Type Values Removed Values Added
References
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJIJRP5ZH6B3KGFLHCAKR2IX2Y4Z25QD/ -

02 Jun 2023, 14:33

Type Values Removed Values Added
References (MISC) https://github.com/matrix-org/synapse/security/advisories/GHSA-f3wc-3vxv-xmvr - (MISC) https://github.com/matrix-org/synapse/security/advisories/GHSA-f3wc-3vxv-xmvr - Mitigation, Vendor Advisory
References (MISC) https://github.com/matrix-org/synapse/issues/14492 - (MISC) https://github.com/matrix-org/synapse/issues/14492 - Exploit, Issue Tracking
References (MISC) https://github.com/matrix-org/synapse/pull/14642 - (MISC) https://github.com/matrix-org/synapse/pull/14642 - Patch
CPE cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:*
CWE CWE-20
First Time Matrix
Matrix synapse
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 4.3

26 May 2023, 15:56

Type Values Removed Values Added
New CVE

Information

Published : 2023-05-26 14:15

Updated : 2023-12-10 15:01


NVD link : CVE-2023-32323

Mitre link : CVE-2023-32323

CVE.ORG link : CVE-2023-32323


JSON object : View

Products Affected

matrix

  • synapse
CWE
CWE-20

Improper Input Validation