CVE-2023-43796
Synapse vulnerable to leak of remote user device information
5.3
MEDIUM
CVSS 3.1
EPSS 0.90%
描述
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.
如何修補 CVE-2023-43796
要修補 CVE-2023-43796,請將受影響套件升級到下列已修補版本。
- —升級至 1.95.1-1 或更新版本
- —升級至 1.95.1 或更新版本
- —升級至 daec55e1fe120c564240c5386e77941372bf458f 或更新版本
CVE-2023-43796 正在被利用嗎?
低 — EPSS 為 0.9%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 1.95.1-1
- from 0, < 1.95.1
- from 0, < daec55e1fe120c564240c5386e77941372bf458f | from 0, < 1.95.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |