Rapid7

vulnerability

Debian: CVE-2017-17742: jruby, ruby1.8, ruby1.9.1 -- security update

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
Mar 28, 2018
Added
Aug 2, 2018
Modified
Mar 30, 2026

Description

Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick.

Solutions

debian-upgrade-jrubydebian-upgrade-ruby1-8debian-upgrade-ruby1-9-1
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.