Name: CVE-2023-45129: Allocation of Resources Without Limits or Throttling
Creator: Rapid7
Published: 2023-10-10T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2023-45129, CWE-770, CVSS 4.9, EPSS 0.01394

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Prior to version 1.94.0, a malicious server ACL event can impact performance temporarily or permanently leading to a persistent denial of service. Homeservers running on a closed federation (which presumably do not need to use server ACLs) are not affected. Server administrators are advised to upgrade to Synapse 1.94.0 or later. As a workaround, rooms with malicious server ACL events can be purged and blocked using the admin API.

CVSS Details

CVSS 3.1 Base Score: 4.9
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade synapse	Aug 22, 2024	Oct 10, 2023
Gentoo Linux	—	Upgrade net-im/synapse.	Jan 8, 2024	Oct 10, 2023

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