CVE-2019-6477

描述

With pipelining enabled each incoming query on a TCP connection requires a similar resource allocation to a query received via UDP or via TCP without pipelining enabled. A client using a TCP-pipelined connection to a server could consume more resources than the server has been provisioned to handle. When a TCP connection with a large number of pipelined queries is closed, the load on the server releasing these multiple resources can cause it to become unresponsive, even for queries that can be answered authoritatively or from cache. (This is most likely to be perceived as an intermittent server problem).

如何修補 CVE-2019-6477

要修補 CVE-2019-6477,請將受影響套件升級到下列已修補版本。

• —升級至 9.14.8-r0 或更新版本

CVE-2019-6477 正在被利用嗎?

低 — EPSS 為 4.0%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 9.11.7, < 9.14.8-r0

CVSS 分數

參考連結(1)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2019-6477