CVE-2019-16254

Name
CVE-2019-16254
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.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Vendor Advisory https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-4-8-released/
Third Party Advisory https://hackerone.com/reports/331984
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 https://www.ruby-lang.org/ja/news/2019/10/01/http-response-splitting-in-webrick-cve-2019-16254/
Mailing List https://lists.debian.org/debian-lts-announce/2019/11/msg00025.html
MLIST https://lists.debian.org/debian-lts-announce/2019/12/msg00009.html
BUGTRAQ https://seclists.org/bugtraq/2019/Dec/32
BUGTRAQ https://seclists.org/bugtraq/2019/Dec/31
DEBIAN https://www.debian.org/security/2019/dsa-4587
DEBIAN https://www.debian.org/security/2019/dsa-4586
MISC https://www.oracle.com/security-alerts/cpujan2020.html
GENTOO https://security.gentoo.org/glsa/202003-06
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html
MLIST https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* ruby >= None <= 2.3.0
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* ruby >= 2.4.0 <= 2.4.7
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* ruby >= 2.5.0 <= 2.5.6
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* ruby >= 2.6.0 <= 2.6.4

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
ruby edge-main 2.6.5-r0 None fixed
ruby edge-main 2.5.2-r0 None possibly vulnerable
ruby edge-main 2.5.1-r0 None possibly vulnerable
ruby edge-main 2.4.3-r0 None possibly vulnerable
ruby edge-main 2.4.2-r0 None possibly vulnerable
ruby 3.22-main 2.6.5-r0 None fixed
ruby 3.22-main 2.5.2-r0 None possibly vulnerable
ruby 3.22-main 2.5.1-r0 None possibly vulnerable
ruby 3.22-main 2.4.3-r0 None possibly vulnerable
ruby 3.22-main 2.4.2-r0 None possibly vulnerable
ruby 3.21-main 2.6.5-r0 None fixed
ruby 3.21-main 2.5.2-r0 None possibly vulnerable
ruby 3.21-main 2.5.1-r0 None possibly vulnerable
ruby 3.21-main 2.4.3-r0 None possibly vulnerable
ruby 3.21-main 2.4.2-r0 None possibly vulnerable
ruby 3.20-main 2.6.5-r0 None fixed
ruby 3.20-main 2.5.2-r0 None possibly vulnerable
ruby 3.20-main 2.5.1-r0 None possibly vulnerable
ruby 3.20-main 2.4.3-r0 None possibly vulnerable
ruby 3.20-main 2.4.2-r0 None possibly vulnerable
ruby 3.19-main 2.6.5-r0 None fixed
ruby 3.19-main 2.5.2-r0 None possibly vulnerable
ruby 3.19-main 2.5.1-r0 None possibly vulnerable
ruby 3.19-main 2.4.3-r0 None possibly vulnerable
ruby 3.19-main 2.4.2-r0 None possibly vulnerable
ruby 3.18-main 2.6.5-r0 None fixed
ruby 3.17-main 2.6.5-r0 None fixed
ruby 3.12-main 2.6.5-r0 None fixed
ruby 3.11-main 2.6.5-r0 None fixed
ruby 3.10-main 2.5.7-r0 None fixed