CVE-2023-39325
HTTP/2 rapid reset can cause excessive work in net/http
描述
A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function.
如何修補 CVE-2023-39325
要修補 CVE-2023-39325,請將受影響套件升級到下列已修補版本。
- —升級至 1.20.10 或更新版本
- —未列出修補版本
- —未列出修補版本
- —升級至 0.17.0 或更新版本
- —升級至 0.17.0 或更新版本
- —升級至 1.20.10 或更新版本
CVE-2023-39325 正在被利用嗎?
低 — EPSS 為 3.8%,目前沒有觀察到大規模利用活動。
受影響套件(6)
- >= 1.20.0, < 1.20.10, >= 1.21.0, < 1.21.3
- from 0
- from 0
- from 0, < 0.17.0
- from 0, < 0.17.0
- from 0, < 1.20.10, >= 1.21.0-0, < 1.21.3
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 |