CVE-2021-41136
Description
Puma is a HTTP 1.1 server for Ruby/Rack applications. Prior to versions 5.5.1 and 4.3.9, using puma with a proxy which forwards HTTP header values which contain the LF character could allow HTTP request smugggling. A client could smuggle a request through a proxy, causing the proxy to send a response back to another unknown client. The only proxy which has this behavior, as far as the Puma team is aware of, is Apache Traffic Server. If the proxy uses persistent connections and the client adds another request in via HTTP pipelining, the proxy may mistake it as the first requests body. Puma, however, would see it as two requests, and when processing the second request, send back a response that the proxy does not expect. If the proxy has reused the persistent connection to Puma to send another request for a different client, the second response from the first client will be sent to the second client. This vulnerability was patched in Puma 5.5.1 and 4.3.9. As a workaround, do not use Apache Traffic Server with puma.
Risk Information
Base Score
3.7
MODERATE
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
EPSS Score
Exploitation Probability
0.288
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Vulnerabilities CVE-2021-41136 are fixed in Ruby-puma 5.5.1 | Windows |
| Vulnerabilities CVE-2021-41136 are fixed in Ruby-puma 4.3.9 | Windows |
| puma security update(DSA-5146-1) puma_4.3.8-1+deb11u2_amd64.deb | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release foreman-cli-3.1.1.21-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release foreman-cli-3.1.1.21-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-amazing_print-1.1.0-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-apipie-bindings-0.4.0-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-clamp-1.1.2-7.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-clamp-1.1.2-7.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-domain_name-0.5.20160310-5.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-fast_gettext-1.4.1-5.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-foreman_maintain-1.0.12-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-foreman_maintain-1.0.12-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli-3.1.0.1-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman-3.1.0.1-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_admin-1.1.0-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_ansible-0.3.4-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_azure_rm-0.2.2-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_bootdisk-0.3.0-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_discovery-1.1.0-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_openscap-0.1.13-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_remote_execution-0.2.2-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_tasks-0.0.17-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_templates-0.2.0-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_virt_who_configure-0.0.9-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_foreman_webhooks-0.0.2-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hammer_cli_katello-1.3.1.6-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-hashie-3.6.0-3.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-highline-2.0.3-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-highline-2.0.3-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-http-cookie-1.0.2-5.1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-jwt-2.2.2-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-little-plugger-1.1.4-3.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-locale-2.0.9-15.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-logging-2.3.0-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-mime-types-3.3.1-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-mime-types-data-3.2018.0812-5.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-multi_json-1.14.1-3.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-netrc-0.11.0-6.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-oauth-0.5.4-5.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-powerbar-2.0.1-3.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-rest-client-2.0.2-4.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-unf-0.1.3-9.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-unf_ext-0.0.7.2-4.1.el8sat.x86_64.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-unf_ext-debugsource-0.0.7.2-4.1.el8sat.x86_64.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-unicode-0.4.4.4-4.1.el8sat.x86_64.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-unicode-debugsource-0.4.4.4-4.1.el8sat.x86_64.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release rubygem-unicode-display_width-1.7.0-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release satellite-cli-6.11.0-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release satellite-cli-6.11.0-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release satellite-clone-3.1.0-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release satellite-clone-3.1.0-2.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release satellite-maintain-0.0.1-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release satellite-maintain-0.0.1-1.el8sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-amazing_print-1.1.0-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-apipie-bindings-0.4.0-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-clamp-1.1.2-7.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-domain_name-0.5.20160310-5.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-fast_gettext-1.4.1-5.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli-3.1.0.1-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman-3.1.0.1-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_admin-1.1.0-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_ansible-0.3.4-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_azure_rm-0.2.2-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_bootdisk-0.3.0-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_discovery-1.1.0-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_openscap-0.1.13-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_remote_execution-0.2.2-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_tasks-0.0.17-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_templates-0.2.0-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_virt_who_configure-0.0.9-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_foreman_webhooks-0.0.2-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hammer_cli_katello-1.3.1.6-1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-hashie-3.6.0-3.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-highline-2.0.3-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-http-cookie-1.0.2-5.1.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-jwt-2.2.2-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-little-plugger-1.1.4-3.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-locale-2.0.9-15.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-logging-2.3.0-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-mime-types-3.3.1-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-mime-types-data-3.2018.0812-5.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-multi_json-1.14.1-3.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-netrc-0.11.0-6.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-oauth-0.5.4-5.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-powerbar-2.0.1-3.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-rest-client-2.0.2-4.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-unf-0.1.3-9.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-unf_ext-0.0.7.2-4.1.el7sat.x86_64.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-unicode-0.4.4.4-4.1.el7sat.x86_64.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-rubygem-unicode-display_width-1.7.0-2.el7sat.noarch.rpm | Linux |
| (RHSA-2022:5498) Satellite 6.11 Release tfm-runtime-7.0-1.el7sat.x86_64.rpm | Linux |
| puma security update(DSA-5146-1) puma_4.3.8-1+deb11u2_i386.deb | Linux |
| Vulnerabilities CVE-2021-41136 are fixed in Ruby-puma for Linux 5.5.1 | Linux |
| Vulnerabilities CVE-2021-41136 are fixed in Ruby-puma for Linux 4.3.9 | Linux |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234