CVE-2017-12425
varnish - security update
7.5
HIGH
CVSS 3.1
EPSS 2.4%
描述
An issue was discovered in Varnish HTTP Cache 4.0.1 through 4.0.4, 4.1.0 through 4.1.7, 5.0.0, and 5.1.0 through 5.1.2. A wrong if statement in the varnishd source code means that particular invalid requests from the client can trigger an assert, related to an Integer Overflow. This causes the varnishd worker process to abort and restart, losing the cached contents in the process. An attacker can therefore crash the varnishd worker process on demand and effectively keep it from serving content - a Denial-of-Service attack. The specific source-code filename containing the incorrect statement varies across releases.
如何修補 CVE-2017-12425
要修補 CVE-2017-12425,請將受影響套件升級到下列已修補版本。
- —升級至 5.1.3-r0 或更新版本
- —升級至 5.0.0-7.1 或更新版本
- —升級至 4.0.2-1+deb8u1 或更新版本
CVE-2017-12425 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(3)
- from 0, < 5.1.3-r0
- from 0, < 5.0.0-7.1
- from 0, < 4.0.2-1+deb8u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |