CVE-2023-45129 (GCVE-0-2023-45129)
Vulnerability from cvelistv5
Published
2023-10-10 17:17
Modified
2025-02-13 17:13
Severity ?
4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
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
security-advisories@github.com https://github.com/matrix-org/synapse/pull/16360 Patch, Vendor Advisory
security-advisories@github.com https://github.com/matrix-org/synapse/security/advisories/GHSA-5chr-wjw5-3gq4 Vendor Advisory
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KEVRB4MG5UXQ5RLZHSUJXM5GWEBYYS5B/ Mailing List
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY/
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WRO4MPQ6HOXIUZM6RJP6VTCTMV7RD2T3/ Mailing List
security-advisories@github.com https://matrix-org.github.io/synapse/latest/admin_api/rooms.html#version-2-new-version Release Notes
security-advisories@github.com https://security.gentoo.org/glsa/202401-12
af854a3a-2127-422b-91ae-364da2661108 https://github.com/matrix-org/synapse/pull/16360 Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/matrix-org/synapse/security/advisories/GHSA-5chr-wjw5-3gq4 Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KEVRB4MG5UXQ5RLZHSUJXM5GWEBYYS5B/ Mailing List
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WRO4MPQ6HOXIUZM6RJP6VTCTMV7RD2T3/ Mailing List
af854a3a-2127-422b-91ae-364da2661108 https://matrix-org.github.io/synapse/latest/admin_api/rooms.html#version-2-new-version Release Notes
af854a3a-2127-422b-91ae-364da2661108 https://security.gentoo.org/glsa/202401-12
Impacted products
Vendor Product Version
matrix-org synapse Version: < 1.94.0
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}


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