CVE-2017-17742

Published: 3 April 2018

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.

From the Ubuntu security team

It was discovered that JRuby mishandled newline characters in HTTP response headers. A remote attacker could use this vulnerability to display malicious content to HTTP clients.

Priority

Medium

CVSS 3 base score: 5.3

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17742
• https://www.ruby-lang.org/en/news/2018/03/28/http-response-splitting-in-webrick-cve-2017-17742/
• https://ubuntu.com/security/notices/USN-3685-1
• NVD
• Launchpad
• Debian