CVE-2017-9445
7.5
HIGH
CVSS 3.1
EPSS 55.1%
描述
In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can cause it to allocate a buffer that's too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that's too small, and subsequently write arbitrary data beyond the end of it.
如何修補 CVE-2017-9445
要修補 CVE-2017-9445,請將受影響套件升級到下列已修補版本。
- Debian/systemd—升級至 233-10 或更新版本
CVE-2017-9445 正在被利用嗎?
可能 — EPSS 為 55.1%,屬於高被利用機率區間,建議優先修補。
受影響套件(1)
- from 0, < 233-10
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 |