CVE-2023-3961
samba - security update
描述
A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.
如何修補 CVE-2023-3961
要修補 CVE-2023-3961,請將受影響套件升級到下列已修補版本。
- —升級至 4.18.8-r0 或更新版本
CVE-2023-3961 正在被利用嗎?
低 — EPSS 為 2.4%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 4.18.0, < 4.18.8-r0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |