CVE-2022-43945
linux - security update
描述
The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
如何修補 CVE-2022-43945
要修補 CVE-2022-43945,請將受影響套件升級到下列已修補版本。
- —升級至 5.10.221-1 或更新版本
- —升級至 5.10.221-1 或更新版本
CVE-2022-43945 正在被利用嗎?
中等 — EPSS 為 21.3%,可持續追蹤但非最高優先。
受影響套件(2)
- from 0, < 5.10.221-1
- from 0, < 5.10.221-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |