CVEvulnerability
CVE-2019-16254
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2019-11-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-74
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.
Affected configurations
• ruby-lang ruby (<= 2.3.0)
• ruby-lang ruby (>= 2.4.0 <= 2.4.7)
• ruby-lang ruby (>= 2.5.0 <= 2.5.6)
• ruby-lang ruby (>= 2.6.0 <= 2.6.4)
• debian debian linux 8.0
Related
Weakness · CWE (1)
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html lists.opensuse.org
- 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 lists.debian.org
- https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html lists.debian.org
- https://seclists.org/bugtraq/2019/Dec/31 seclists.org
- https://seclists.org/bugtraq/2019/Dec/32 seclists.org
- https://security.gentoo.org/glsa/202003-06 security.gentoo.org
- https://www.debian.org/security/2019/dsa-4586 www.debian.org
- https://www.debian.org/security/2019/dsa-4587 www.debian.org
- https://www.oracle.com/security-alerts/cpujan2020.html www.oracle.com
- 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
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html lists.opensuse.org
- 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 lists.debian.org
- https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html lists.debian.org
- https://seclists.org/bugtraq/2019/Dec/31 seclists.org
- https://seclists.org/bugtraq/2019/Dec/32 seclists.org
- https://security.gentoo.org/glsa/202003-06 security.gentoo.org
- https://www.debian.org/security/2019/dsa-4586 www.debian.org
- https://www.debian.org/security/2019/dsa-4587 www.debian.org
- https://www.oracle.com/security-alerts/cpujan2020.html www.oracle.com
- 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