National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2019-16254 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.3 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://hackerone.com/reports/331984 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00025.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/12/msg00009.html
https://seclists.org/bugtraq/2019/Dec/31
https://seclists.org/bugtraq/2019/Dec/32
https://www.debian.org/security/2019/dsa-4586
https://www.debian.org/security/2019/dsa-4587
https://www.oracle.com/security-alerts/cpujan2020.html
https://www.ruby-lang.org/ja/news/2019/10/01/http-response-splitting-in-webrick-cve-2019-16254/ Vendor Advisory
https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-4-8-released/ Vendor Advisory
https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-5-7-released/ Vendor Advisory
https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-6-5-released/ Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
2.3.0
 cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.4.0		Up to (including)
2.4.7
 cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.5.0		Up to (including)
2.5.6
 cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.6.0		Up to (including)
2.6.4

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-16254
NVD Published Date:
11/26/2019
NVD Last Modified:
12/10/2019