CVE-2023-45129: Allocation of Resources Without Limits or Throttling
(updated )
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.
References
- github.com/advisories/GHSA-5chr-wjw5-3gq4
- github.com/matrix-org/synapse/commit/f84da3c32ec74cf054e2fd6d10618aa4997cffaa
- github.com/matrix-org/synapse/pull/16360
- github.com/matrix-org/synapse/security/advisories/GHSA-5chr-wjw5-3gq4
- matrix-org.github.io/synapse/latest/admin_api/rooms.html
- nvd.nist.gov/vuln/detail/CVE-2023-45129
Detect and mitigate CVE-2023-45129 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →