CVE-2019-16254

描述

Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients. NOTE: this issue exists because of an incomplete fix for CVE-2017-17742, which addressed the CRLF vector, but did not address an isolated CR or an isolated LF.

如何修補 CVE-2019-16254

要修補 CVE-2019-16254,請將受影響套件升級到下列已修補版本。

• —升級至 2.5.7-r0 或更新版本

CVE-2019-16254 正在被利用嗎?

低 — EPSS 為 4.6%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 2.4.0, < 2.5.7-r0

CVSS 分數

參考連結(1)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2019-16254