CVE-2020-17527
Apache Tomcat: Request header mix-up between HTTP/2 streams
7.5
HIGH
CVSS 3.1
EPSS 24.6%
描述
While investigating bug 64830 it was discovered that Apache Tomcat 9.0.0 through 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.
如何修補 CVE-2020-17527
要修補 CVE-2020-17527,請將受影響套件升級到下列已修補版本。
- —升級至 8.5.60 或更新版本
- —升級至 8.5.54-0+deb9u5 或更新版本
- —升級至 9.0.40-1 或更新版本
- —升級至 10.0.0-M10 或更新版本
CVE-2020-17527 正在被利用嗎?
中等 — EPSS 為 24.6%,可持續追蹤但非最高優先。
受影響套件(4)
- >= 8.5.1, < 8.5.60, >= 9.0.1, < 9.0.40
- from 0, < 8.5.54-0+deb9u5
- from 0, < 9.0.40-1
- >= 10.0.0-M1, < 10.0.0-M10
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:H/I:N/A:N |