MEDIUM 5.3 PyPI
Synapse vulnerable to leak of remote user device information
GHSA-mp92-3jfm-3575 · CVE-2023-43796 · PYSEC-2023-230
Published · Modified
AI SAST
Find this class of vulnerability in your own code
Corgea's AI-native static analysis detects vulnerabilities like this one across your repositories, ranks them by exploitability, and returns review-ready fixes.
Description
Impact
Cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver.
Patches
System administrators are encouraged to upgrade to Synapse 1.95.1 as soon as possible.
Workarounds
The federation_domain_whitelist can be used to limit federation traffic with a homeserver.
References
- WEB https://github.com/matrix-org/synapse/security/advisories/GHSA-mp92-3jfm-3575
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-43796
- WEB https://github.com/matrix-org/synapse/commit/daec55e1fe120c564240c5386e77941372bf458f
- PACKAGE https://github.com/matrix-org/synapse
- WEB https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-230.yaml
- WEB https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2IDEEZMFJBDLTFHQUTZRJJNCOZGQ2ZVS
- WEB https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VH3RNC5ZPQZ4OKPSL4E6BBJSZOQLGDEY
- WEB https://security.gentoo.org/glsa/202401-12
Ready to move
Start Securing
Free, no credit card | First findings in minutes