CVE-2025-11411
unbound - security update
描述
NLnet Labs Unbound up to and including version 1.24.1 is vulnerable to possible domain hijack attacks. Promiscuous NS RRSets that complement positive DNS replies in the authority section can be used to trick resolvers to update their delegation information for the zone. Usually these RRSets are used to update the resolver's knowledge of the zone's name servers. A malicious actor can exploit the possible poisonous effect by injecting NS RRSets (and possibly their respective address records) in a reply. This could be done for example by trying to spoof a packet or fragmentation attacks. Unbound would then proceed to update the NS RRSet data it already has since the new data has enough trust for it, i.e., in-zone data for the delegation point. Unbound 1.24.1 includes a fix that scrubs unsolicited NS RRSets (and their respective address records) from replies mitigating the possible poison effect. Unbound 1.24.2 includes an additional fix that scrubs unsolicited NS RRSets (and their respective address records) from YXDOMAIN and non-referral nodata replies, further mitigating the possible poison effect.
如何修補 CVE-2025-11411
要修補 CVE-2025-11411,請將受影響套件升級到下列已修補版本。
- —升級至 1.20.0-r2 或更新版本
- —升級至 1.13.1-1+deb11u7 或更新版本
- —升級至 1.13.1-1+deb11u6 或更新版本
- —升級至 1.13.1-1+deb11u7 或更新版本
- —升級至 1.22.0-2+deb13u1 或更新版本
CVE-2025-11411 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(5)
- from 0, < 1.20.0-r2
- from 0, < 1.13.1-1+deb11u7
- from 0, < 1.13.1-1+deb11u6
- from 0, < 1.13.1-1+deb11u7
- from 0, < 1.22.0-2+deb13u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |