CVE-2018-14663

描述

An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter some records that should not be received by the backend. This issue occurs only when either the 'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend.

如何修補 CVE-2018-14663

要修補 CVE-2018-14663,請將受影響套件升級到下列已修補版本。

• —升級至 1.3.3-1 或更新版本

CVE-2018-14663 正在被利用嗎?

低 — EPSS 為 2.6%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 1.3.3-1

CVSS 分數

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2018-14663