Ruby/puma/5.6.2
Puma is a simple, fast, threaded, and highly parallel HTTP 1.1 server for Ruby/Rack applications. Puma is intended for use in both development and production environments. It's great for highly parallel Ruby implementations such as Rubinius and JRuby as well as as providing process worker support to support CRuby well.
https://rubygems.org/gems/puma
BSD-3-Clause
3 Security Vulnerabilities
Puma HTTP Request/Response Smuggling vulnerability
- https://github.com/puma/puma/security/advisories/GHSA-c2f4-cvqm-65w2
- https://nvd.nist.gov/vuln/detail/CVE-2024-21647
- https://github.com/puma/puma/commit/5fc43d73b6ff193325e657a24ed76dec79133e93
- https://github.com/puma/puma/commit/60d5ee3734adc8cee85c3f0561af392448fe19b7
- https://github.com/puma/puma/commit/bbb880ffb6debbfdea535b4b3eb2204d49ae151d
- https://github.com/advisories/GHSA-c2f4-cvqm-65w2
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2024-21647.yml
Impact
Prior to versions 6.4.2 and 5.6.8, puma exhibited dangerous behavior when parsing chunked transfer encoding bodies.
Fixed versions limit the size of chunk extensions. Without this limit, an attacker could cause unbounded resource (CPU, network bandwidth) consumption.
Patches
The vulnerability has been fixed in 6.4.2 and 5.6.8.
Workarounds
No known workarounds.
References
- HTTP Request Smuggling
- Open an issue in Puma
- See our security policy
Puma vulnerable to HTTP Request Smuggling
- https://github.com/puma/puma/security/advisories/GHSA-h99w-9q5r-gjq9
- https://github.com/puma/puma/commit/5bb7d202e24dec00a898dca4aa11db391d7787a5
- https://github.com/advisories/GHSA-h99w-9q5r-gjq9
- https://nvd.nist.gov/vuln/detail/CVE-2022-24790
- https://portswigger.net/web-security/request-smuggling
- https://www.debian.org/security/2022/dsa-5146
- https://security.gentoo.org/glsa/202208-28
- https://lists.debian.org/debian-lts-announce/2022/08/msg00015.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7NESIBFCNSR3XH7LXDPKVMSUBNUB43G/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TUBFJ44NCKJ34LECZRAP4N5VL6USJSIB/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F6YWGIIKL7KKTS3ZOAYMYPC7D6WQ5OA5/
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2022-24790.yml
When using Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230 standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow requests to be smuggled via the front-end proxy to Puma.
The following vulnerabilities are addressed by this advisory:
- Lenient parsing of Transfer-Encoding
headers, when unsupported encodings should be rejected and the final encoding must be chunked
.
- Lenient parsing of malformed Content-Length
headers and chunk sizes, when only digits and hex digits should be allowed.
- Lenient parsing of duplicate Content-Length
headers, when they should be rejected.
- Lenient parsing of the ending of chunked segments, when they should end with \r\n
.
The vulnerability has been fixed in 5.6.4 and 4.3.12. When deploying a proxy in front of Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
These proxy servers are known to have good
behavior re: this standard and upgrading Puma may not be necessary. Users are encouraged to validate for themselves.
- Nginx (latest)
- Apache (latest)
- Haproxy 2.5+
- Caddy (latest)
- Traefik (latest)
HTTP Request Smuggling in puma
Impact
When using Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230 standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow requests to be smuggled via the front-end proxy to Puma.
The following vulnerabilities are addressed by this advisory:
- Lenient parsing of Transfer-Encoding
headers, when unsupported encodings
should be rejected and the final encoding must be chunked
.
- Lenient parsing of malformed Content-Length
headers and chunk sizes, when
only digits and hex digits should be allowed.
- Lenient parsing of duplicate Content-Length
headers, when they should be
rejected.
- Lenient parsing of the ending of chunked segments, when they should end
with \r\n
.
Patches
The vulnerability has been fixed in 5.6.4 and 4.3.12.
Workarounds
When deploying a proxy in front of Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
These proxy servers are known to have good
behavior re: this standard and
upgrading Puma may not be necessary. Users are encouraged to validate for
themselves.
- Nginx (latest)
- Apache (latest)
- Haproxy 2.5+
- Caddy (latest)
- Traefik (latest)
References
169 Other Versions
Version | License | Security | Released | |
---|---|---|---|---|
6.4.3 | BSD-3-Clause | 2024-09-19 - 05:50 | 2 days | |
6.4.2 | BSD-3-Clause | 2024-01-08 - 05:57 | 9 months | |
6.4.1 | BSD-3-Clause | 2 | 2024-01-03 - 00:05 | 9 months |
6.4.0 | BSD-3-Clause | 2 | 2023-09-21 - 04:15 | almost 1 year |
6.3.1 | BSD-3-Clause | 2 | 2023-08-18 - 01:22 | about 1 year |
6.3.0 | BSD-3-Clause | 4 | 2023-05-31 - 07:16 | over 1 year |
6.2.2 | BSD-3-Clause | 4 | 2023-04-17 - 22:44 | over 1 year |
6.2.1 | BSD-3-Clause | 4 | 2023-03-31 - 06:53 | over 1 year |
6.2.0 | BSD-3-Clause | 4 | 2023-03-29 - 06:55 | over 1 year |
6.1.1 | BSD-3-Clause | 4 | 2023-02-28 - 07:40 | over 1 year |
6.1.0 | BSD-3-Clause | 4 | 2023-02-12 - 04:58 | over 1 year |
6.0.2 | BSD-3-Clause | 4 | 2023-01-01 - 22:04 | over 1 year |
6.0.1 | BSD-3-Clause | 4 | 2022-12-20 - 20:21 | almost 2 years |
6.0.0 | BSD-3-Clause | 4 | 2022-10-14 - 02:33 | almost 2 years |
5.6.9 | BSD-3-Clause | 2024-09-19 - 05:41 | 2 days | |
5.6.8 | BSD-3-Clause | 2024-01-08 - 06:09 | 9 months | |
5.6.7 | BSD-3-Clause | 1 | 2023-08-18 - 05:58 | about 1 year |
5.6.6 | BSD-3-Clause | 1 | 2023-06-21 - 02:59 | over 1 year |
5.6.5 | BSD-3-Clause | 1 | 2022-08-23 - 06:04 | about 2 years |
5.6.4 | BSD-3-Clause | 1 | 2022-03-30 - 16:15 | over 2 years |
5.6.2 | BSD-3-Clause | 3 | 2022-02-11 - 21:17 | over 2 years |
5.6.1 | BSD-3-Clause | 5 | 2022-01-27 - 00:40 | over 2 years |
5.6.0 | BSD-3-Clause | 5 | 2022-01-25 - 21:21 | over 2 years |
5.5.2 | BSD-3-Clause | 8 | 2021-10-12 - 23:08 | almost 3 years |
5.5.1 | BSD-3-Clause | 8 | 2021-10-12 - 15:11 | almost 3 years |
5.5.0 | BSD-3-Clause | 10 | 2021-09-19 - 20:09 | about 3 years |
5.4.0 | BSD-3-Clause | 10 | 2021-07-29 - 14:31 | about 3 years |
5.3.2 | BSD-3-Clause | 10 | 2021-05-21 - 17:17 | over 3 years |
5.3.1 | BSD-3-Clause | 10 | 2021-05-11 - 14:56 | over 3 years |
5.3.0 | BSD-3-Clause | 12 | 2021-05-07 - 15:01 | over 3 years |
5.2.2 | BSD-3-Clause | 12 | 2021-03-02 - 16:08 | over 3 years |
5.2.1 | BSD-3-Clause | 12 | 2021-02-05 - 22:28 | over 3 years |
5.2.0 | BSD-3-Clause | 12 | 2021-01-27 - 20:43 | over 3 years |
5.1.1 | BSD-3-Clause | 12 | 2020-12-10 - 15:28 | almost 4 years |
5.1.0 | BSD-3-Clause | 12 | 2020-11-30 - 17:33 | almost 4 years |
5.0.4 | BSD-3-Clause | 12 | 2020-10-27 - 14:18 | almost 4 years |
5.0.3 | BSD-3-Clause | 12 | 2020-10-26 - 13:05 | almost 4 years |
5.0.2 | BSD-3-Clause | 12 | 2020-09-28 - 15:19 | almost 4 years |
5.0.1 | BSD-3-Clause | 12 | 2020-09-28 - 13:48 | almost 4 years |
5.0.0 | BSD-3-Clause | 12 | 2020-09-17 - 17:06 | about 4 years |
5.0.0.beta2 | BSD-3-Clause | 8 | 2020-09-05 - 22:28 | about 4 years |
5.0.0.beta1 | BSD-3-Clause | 8 | 2020-05-12 - 01:49 | over 4 years |
4.3.12 | BSD-3-Clause | 4 | 2022-03-30 - 16:14 | over 2 years |
4.3.11 | BSD-3-Clause | 5 | 2022-02-11 - 21:21 | over 2 years |
4.3.10 | BSD-3-Clause | 6 | 2021-10-12 - 23:15 | almost 3 years |
4.3.9 | BSD-3-Clause | 6 | 2021-10-12 - 15:13 | almost 3 years |
4.3.8 | BSD-3-Clause | 7 | 2021-05-11 - 14:54 | over 3 years |
4.3.7 | BSD-3-Clause | 8 | 2020-11-30 - 16:54 | almost 4 years |
4.3.6 | BSD-3-Clause | 8 | 2020-09-05 - 21:12 | about 4 years |
4.3.5 | BSD-3-Clause | 8 | 2020-05-19 - 22:43 | over 4 years |
4.3.4 | BSD-3-Clause | 10 | 2020-05-19 - 00:09 | over 4 years |
4.3.3 | BSD-3-Clause | 12 | 2020-02-28 - 19:23 | over 4 years |
4.3.1 | BSD-3-Clause | 16 | 2019-12-05 - 07:38 | almost 5 years |
4.3.0 | BSD-3-Clause | 18 | 2019-11-07 - 21:05 | almost 5 years |
4.2.1 | BSD-3-Clause | 22 | 2019-10-07 - 09:44 | almost 5 years |
4.2.0 | BSD-3-Clause | 22 | 2019-09-23 - 09:25 | almost 5 years |
4.1.1 | BSD-3-Clause | 22 | 2019-09-09 - 12:20 | about 5 years |
4.1.0 | BSD-3-Clause | 22 | 2019-08-08 - 19:55 | about 5 years |
4.0.1 | BSD-3-Clause | 22 | 2019-07-11 - 17:52 | about 5 years |
4.0.0 | BSD-3-Clause | 22 | 2019-06-25 - 17:46 | about 5 years |
3.12.6 | BSD-3-Clause | 12 | 2020-05-19 - 22:43 | over 4 years |
3.12.5 | BSD-3-Clause | 13 | 2020-05-19 - 00:08 | over 4 years |
3.12.4 | BSD-3-Clause | 14 | 2020-02-28 - 19:49 | over 4 years |
3.12.2 | BSD-3-Clause | 16 | 2019-12-05 - 07:43 | almost 5 years |
3.12.1 | BSD-3-Clause | 17 | 2019-03-19 - 18:07 | over 5 years |
3.12.0 | BSD-3-Clause | 17 | 2018-07-13 - 16:10 | about 6 years |
3.11.4 | BSD-3-Clause | 22 | 2018-04-12 - 19:40 | over 6 years |
3.11.3 | BSD-3-Clause | 22 | 2018-03-06 - 05:42 | over 6 years |
3.11.2 | BSD-3-Clause | 22 | 2018-01-19 - 19:24 | over 6 years |
3.11.1 | BSD-3-Clause | 22 | 2018-01-19 - 04:49 | over 6 years |
3.11.0 | BSD-3-Clause | 22 | 2017-11-20 - 16:29 | almost 7 years |
3.10.0 | BSD-3-Clause | 22 | 2017-08-17 - 19:25 | about 7 years |
3.9.1 | BSD-3-Clause | 22 | 2017-06-03 - 14:04 | over 7 years |
3.9.0 | BSD-3-Clause | 22 | 2017-06-01 - 15:40 | over 7 years |
3.8.2 | BSD-3-Clause | 22 | 2017-03-14 - 17:57 | over 7 years |
3.8.1 | BSD-3-Clause | 22 | 2017-03-10 - 17:20 | over 7 years |
3.8.0 | BSD-3-Clause | 22 | 2017-03-09 - 22:28 | over 7 years |
3.7.1 | BSD-3-Clause | 22 | 2017-02-20 - 15:19 | over 7 years |
3.7.0 | BSD-3-Clause | 22 | 2017-01-28 - 00:36 | over 7 years |
3.6.2 | BSD-3-Clause | 22 | 2016-11-22 - 23:57 | almost 8 years |
3.6.1 | BSD-3-Clause | 22 | 2016-11-21 - 19:08 | almost 8 years |
3.6.0 | BSD-3-Clause | 22 | 2016-07-25 - 05:18 | about 8 years |
3.5.2 | BSD-3-Clause | 22 | 2016-07-20 - 17:59 | about 8 years |
3.5.1 | BSD-3-Clause | 22 | 2016-07-20 - 17:55 | about 8 years |
3.5.0 | BSD-3-Clause | 22 | 2016-07-19 - 05:08 | about 8 years |
3.4.0 | BSD-3-Clause | 22 | 2016-04-07 - 22:07 | over 8 years |
3.3.0 | BSD-3-Clause | 22 | 2016-04-05 - 16:29 | over 8 years |
3.2.0 | BSD-3-Clause | 22 | 2016-03-20 - 21:21 | over 8 years |
3.1.1 | BSD-3-Clause | 22 | 2016-03-18 - 04:33 | over 8 years |
3.1.0 | BSD-3-Clause | 22 | 2016-03-06 - 00:34 | over 8 years |
3.0.2 | BSD-3-Clause | 22 | 2016-02-26 - 18:39 | over 8 years |
3.0.1 | BSD-3-Clause | 22 | 2016-02-26 - 03:44 | over 8 years |
3.0.0 | BSD-3-Clause | 22 | 2016-02-25 - 22:25 | over 8 years |
3.0.0.rc1 | BSD-3-Clause | 22 | 2016-02-20 - 01:27 | over 8 years |
2.16.0 | BSD-3-Clause | 22 | 2016-01-28 - 03:58 | over 8 years |
2.15.3 | BSD-3-Clause | 22 | 2015-11-07 - 17:19 | almost 9 years |
2.15.2 | BSD-3-Clause | 22 | 2015-11-06 - 23:35 | almost 9 years |
2.15.1 | BSD-3-Clause | 22 | 2015-11-06 - 23:31 | almost 9 years |
2.15.0 | BSD-3-Clause | 22 | 2015-11-06 - 19:08 | almost 9 years |
2.14.0 | BSD-3-Clause | 22 | 2015-09-18 - 16:57 | about 9 years |