CVE-2023-43796
Summary
| CVE | CVE-2023-43796 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-10-31 17:15:00 UTC |
| Updated | 2024-01-07 11:15:00 UTC |
| Description | Synapse is an open-source Matrix homeserver Prior to versions 1.95.1 and 1.96.0rc1, cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver. System administrators are encouraged to upgrade to Synapse 1.95.1 or 1.96.0rc1 to receive a patch. As a workaround, the `federation_domain_whitelist` can be used to limit federation traffic with a homeserver. |
Risk And Classification
Problem Types: NVD-CWE-noinfo
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Fedoraproject | Fedora | 38 | All | All | All |
| Operating System | Fedoraproject | Fedora | 39 | All | All | All |
| Application | Matrix | Synapse | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [SECURITY] Fedora 38 Update: matrix-synapse-1.95.1-1.fc38 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| security.gentoo.org/glsa/202401-12 | security.gentoo.org | ||
| Merge pull request from GHSA-mp92-3jfm-3575 · matrix-org/synapse@daec55e · GitHub | MISC | github.com | |
| Leak of remote user device information · Advisory · matrix-org/synapse · GitHub | MISC | github.com | |
| [SECURITY] Fedora 39 Update: matrix-synapse-1.95.1-1.fc39 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 284722 Fedora Security Update for matrix (FEDORA-2023-f8d216faed)
- 285158 Fedora Security Update for matrix (FEDORA-2023-957972e77c)
- 503466 Alpine Linux Security Update for synapse
- 506257 Alpine Linux Security Update for synapse
- 710826 Gentoo Linux Synapse Multiple Vulnerabilities (GLSA 202401-12)
- 995797 Python (Pip) Security Update for matrix-synapse (GHSA-mp92-3jfm-3575)