CVE-2019-16254 log

Source
Severity Medium
Remote Yes
Type Content spoofing
Description
It has been discovered that Ruby before 2.4.8, 2.5.7 and 2.6.5 is vulnerable to HTTP response splitting in WEBrick bundled with Ruby. 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.
This is the same issue as CVE-2017-17742. The previous fix was incomplete, which addressed the CRLF vector, but did not address an isolated CR or an isolated LF.
Group Package Affected Fixed Severity Status Ticket
AVG-1040 ruby2.5 2.5.6-1 2.5.7-1 Medium Fixed FS#63977
AVG-1039 ruby 2.6.4-1 2.6.5-1 Medium Fixed FS#63977
Date Advisory Group Package Severity Description
02 Oct 2019 ASA-201910-5 AVG-1040 ruby2.5 Medium multiple issues
02 Oct 2019 ASA-201910-2 AVG-1039 ruby Medium multiple issues
References
https://www.ruby-lang.org/en/news/2019/10/01/http-response-splitting-in-webrick-cve-2019-16254/