CVE-2023-50387
pdns-recursor - security update
7.5
HIGH
CVSS 3.1
EPSS 100.0%
描述
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
如何修補 CVE-2023-50387
要修補 CVE-2023-50387,請將受影響套件升級到下列已修補版本。
- —升級至 9.16.48-r0 或更新版本
- —升級至 2.90-r0 或更新版本
- —升級至 1.19.1-r0 或更新版本
CVE-2023-50387 正在被利用嗎?
可能 — EPSS 為 100.0%,屬於高被利用機率區間,建議優先修補。
受影響套件(3)
- >= 9.0.0, < 9.16.48-r0
- from 0, < 2.90-r0
- from 0, < 1.19.1-r0
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 |