Ubuntu.comUB:CVE-2023-45129CVE-2023-45129
4.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
49.0%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | matrix-synapse | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | matrix-synapse | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | matrix-synapse | < any | UNKNOWN |
| ubuntu | 23.10 | noarch | matrix-synapse | < any | UNKNOWN |
| ubuntu | 24.04 | noarch | matrix-synapse | < any | UNKNOWN |
References
github.com/matrix-org/synapse/pull/16360
github.com/matrix-org/synapse/security/advisories/GHSA-5chr-wjw5-3gq4
launchpad.net/bugs/cve/CVE-2023-45129
matrix-org.github.io/synapse/latest/admin_api/rooms.html#version-2-new-version
nvd.nist.gov/vuln/detail/CVE-2023-45129
security-tracker.debian.org/tracker/CVE-2023-45129
www.cve.org/CVERecord?id=CVE-2023-45129
Related
4.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
49.0%