Description
An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | jruby | 9.3.9.0+ds-1 | — |
| Debian 13 | jruby | 9.3.9.0+ds-1 | — |
| Debian 12 | jruby | 9.3.9.0+ds-1 | — |
| Debian 10 | jruby | 9.1.17.0-3+deb10u1 | DLA-3408-1 |
| Debian 9 | jruby | 1.7.26-1+deb9u3 | DLA-2392-1 |
| Debian 9 | ruby2.3 | 2.3.3-1+deb9u9 | DLA-2391-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ruby2.7 | 2.7.0-5ubuntu1.3 | USN-4882-1 |
| Ubuntu 18.04 LTS | ruby2.5 | 2.5.1-1ubuntu1.8 | USN-4882-1 |
| Ubuntu 16.04 LTS | ruby2.3 | 2.3.1-2~ubuntu16.04.15 | USN-4882-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | ruby +4 | 2.5.9-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | ruby-default-gems | 2.7.3-136.module+el8.4.0+10728+4c884998 | RHSA-2021:2584 |
| RHEL 8 | rubygem-abrt +1 | 0.3.0-4.module+el8.1.0+3653+beb38eb0 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-bigdecimal | 1.3.4-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-bson +1 | 4.3.0-2.module+el8.1.0+3656+f80bfa1d | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-bundler +1 | 1.16.1-3.module+el8.1.0+3656+f80bfa1d | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-did_you_mean | 1.2.0-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587 |
| RHEL 8 | rubygem-io-console | 0.4.6-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-irb | 1.0.0-107.module+el8.4.0+10830+bbd85cce | RHSA-2021:2588, RHSA-2021:2584 |
| RHEL 8 | rubygem-json | 2.1.0-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-minitest | 5.10.3-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-mongo +1 | 2.5.1-2.module+el8.1.0+3656+f80bfa1d | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-mysql2 +1 | 0.4.10-4.module+el8.1.0+3656+f80bfa1d | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-net-telnet | 0.1.1-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-openssl | 2.1.2-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-pg +1 | 1.0.0-2.module+el8.1.0+3656+f80bfa1d | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-power_assert | 1.1.1-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-psych | 3.0.2-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-rake | 12.3.3-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-rdoc | 6.0.1.1-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-test-unit | 3.2.7-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygem-xmlrpc | 0.3.0-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 8 | rubygems +1 | 2.7.6.3-107.module+el8.4.0+10822+fe4fffb1 | RHSA-2021:2588, RHSA-2021:2587, RHSA-2021:2584 |
| RHEL 3 | rh-ruby25-ruby +4 | 2.5.9-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-bigdecimal | 1.3.4-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-did_you_mean | 1.2.0-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-io-console | 0.4.6-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-json | 2.1.0-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-minitest | 5.10.3-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-net-telnet | 0.1.1-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-openssl | 2.1.2-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-power_assert | 1.1.1-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-psych | 3.0.2-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-rake | 12.3.3-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-rdoc | 6.0.1.1-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-test-unit | 3.2.7-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygem-xmlrpc | 0.3.0-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby25-rubygems +1 | 2.7.6.3-9.el7 | RHSA-2021:2104 |
| RHEL 3 | rh-ruby26-ruby +3 | 2.6.7-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-bigdecimal | 1.4.1-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-bundler | 1.17.2-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-did_you_mean | 1.3.0-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-io-console | 0.4.7-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-irb | 1.0.0-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-json | 2.1.0-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-minitest | 5.11.3-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-net-telnet | 0.2.0-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-openssl | 2.1.2-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-power_assert | 1.1.3-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-psych | 3.1.0-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-rake | 12.3.3-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-rdoc | 6.1.2-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-test-unit | 3.2.9-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygem-xmlrpc | 0.3.0-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby26-rubygems +1 | 3.0.3.1-119.el7 | RHSA-2021:2230 |
| RHEL 3 | rh-ruby27-ruby +3 | 2.7.3-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-bigdecimal | 2.0.0-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-bundler | 2.1.4-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-did_you_mean | 1.4.0-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-io-console | 0.5.6-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-irb | 1.2.6-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-json | 2.3.0-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-minitest | 5.13.0-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-net-telnet | 0.2.0-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-openssl | 2.1.2-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-power_assert | 1.1.7-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-psych | 3.1.0-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-racc | 1.4.16-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-rake | 13.0.1-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-rdoc | 6.2.1-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-test-unit | 3.3.4-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygem-xmlrpc | 0.3.0-129.el7 | RHSA-2021:2229 |
| RHEL 3 | rh-ruby27-rubygems +1 | 3.1.6-129.el7 | RHSA-2021:2229 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.2 EUS | ruby +3 | 2.6.9-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-abrt +1 | 0.3.0-4.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-bigdecimal | 1.4.1-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-bson +1 | 4.5.0-1.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-bundler | 1.17.2-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-did_you_mean | 1.3.0-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-io-console | 0.4.7-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-irb | 1.0.0-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-json | 2.1.0-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-minitest | 5.11.3-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-mongo +1 | 2.8.0-1.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-mysql2 +1 | 0.5.2-1.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-net-telnet | 0.2.0-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-openssl | 2.1.2-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-pg +1 | 1.1.4-1.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-power_assert | 1.1.3-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-psych | 3.1.0-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-rake | 12.3.3-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-rdoc | 6.1.2.1-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-test-unit | 3.2.9-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygem-xmlrpc | 0.3.0-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.2 EUS | rubygems +1 | 3.0.3.1-107.module+el8.2.0+14086+86d863af | RHSA-2022:0582 |
| RHEL 8.1 E4S | ruby +3 | 2.6.9-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-abrt +1 | 0.3.0-4.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-bigdecimal | 1.4.1-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-bson +1 | 4.5.0-1.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-bundler | 1.17.2-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-did_you_mean | 1.3.0-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-io-console | 0.4.7-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-irb | 1.0.0-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-json | 2.1.0-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-minitest | 5.11.3-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-mongo +1 | 2.8.0-1.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-mysql2 +1 | 0.5.2-1.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-net-telnet | 0.2.0-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-openssl | 2.1.2-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-pg +1 | 1.1.4-1.module+el8.1.0+3653+beb38eb0 | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-power_assert | 1.1.3-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-psych | 3.1.0-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-rake | 12.3.3-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-rdoc | 6.1.2.1-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-test-unit | 3.2.9-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygem-xmlrpc | 0.3.0-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| RHEL 8.1 E4S | rubygems +1 | 3.0.3.1-107.module+el8.1.0+14088+04cf326e | RHSA-2022:0581 |
| Red Hat Hardened Images 1 | ruby3.3 +5 | 3.3.10-23.1.hum1 | RHSA-2026:7305 |
| Red Hat Hardened Images 1 | ruby3.4 +5 | 3.4.8-31.1.hum1 | RHSA-2026:7307 |
| Red Hat Hardened Images 1 | ruby4.0 +5 | 4.0.0-33.3.hum1 | RHSA-2026:8838 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | rubygem-abrt +1 | 0.3.0-4.module_el8.5.0+259+8cec6917 | ALSA-2021:2588, ALSA-2021:2587, ALSA-2021:2584 |
| AlmaLinux 8 | rubygem-bson +1 | 4.3.0-2.module_el8.5.0+259+8cec6917 | ALSA-2021:2588, ALSA-2021:2587, ALSA-2021:2584 |
| AlmaLinux 8 | rubygem-mongo +1 | 2.5.1-2.module_el8.5.0+259+8cec6917 | ALSA-2021:2588, ALSA-2021:2587, ALSA-2021:2584 |
| AlmaLinux 8 | rubygem-mysql2 +1 | 0.4.10-4.module_el8.5.0+259+8cec6917 | ALSA-2021:2588, ALSA-2021:2587, ALSA-2021:2584 |
| AlmaLinux 8 | rubygem-pg +1 | 1.0.0-2.module_el8.5.0+259+8cec6917 | ALSA-2021:2588, ALSA-2021:2587, ALSA-2021:2584 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | ruby | 2.5.9-107.module+el8.4.0+592+03ff458a | RLSA-2021:2588, RLSA-2021:2587, RLSA-2021:2584 |
| Rocky Linux 8 | rubygem-abrt | 0.3.0-4.module+el8.3.0+167+5c390590 | RLSA-2021:2588, RLSA-2021:2587, RLSA-2021:2584 |
| Rocky Linux 8 | rubygem-bson | 4.3.0-2.module+el8.3.0+167+5c390590 | RLSA-2021:2588, RLSA-2021:2587, RLSA-2021:2584 |
| Rocky Linux 8 | rubygem-bundler | 1.16.1-3.module+el8.3.0+167+5c390590 | RLSA-2021:2587 |
| Rocky Linux 8 | rubygem-mongo | 2.5.1-2.module+el8.4.0+349+3470f258 | RLSA-2021:2588, RLSA-2021:2587, RLSA-2021:2584 |
| Rocky Linux 8 | rubygem-mysql2 | 0.4.10-4.module+el8.3.0+167+5c390590 | RLSA-2021:2588, RLSA-2021:2587, RLSA-2021:2584 |
| Rocky Linux 8 | rubygem-pg | 1.0.0-2.module+el8.3.0+167+5c390590 | RLSA-2021:2588, RLSA-2021:2587, RLSA-2021:2584 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SLES 15 SP1 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SLES 15 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SLES 12 SP5 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SLES 12 SP4 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
Show 19 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SLES 12 SP2 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SLES for SAP 15 SP1 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SLES for SAP 15 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SLES for SAP 12 SP5 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SLES for SAP 12 SP4 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SLES for SAP 12 SP3 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SLE Micro 5.0 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SLE HPC 15 SP1 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SLE HPC 15 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SUSE OpenStack Cloud Crowbar 9 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SUSE OpenStack Cloud Crowbar 8 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SUSE OpenStack Cloud 9 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SUSE OpenStack Cloud 8 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SUSE Manager Server 4.0 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SUSE Manager Retail Branch Server 4.0 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SUSE Manager Proxy 4.0 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
| SUSE HPE Helion OpenStack 8 | ruby2.1 | 2.1.9-19.6.1 | SUSE-SU-2021:3837-1 |
| SUSE Enterprise Storage 6 | ruby2.5 | 2.5.8-4.14.1 | SUSE-SU-2021:0933-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ruby2.7 | 2.7.3-3.2 | openSUSE-SU-2024:11310-1 |
| openSUSE Leap 15.2 | ruby2.5 | 2.5.8-lp152.2.3.1 | openSUSE-SU-2021:0471-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | ruby | 2.7.2-r0 | — |
| Alpine v3.23 | ruby | 2.7.2-r0 | — |
| Alpine v3.22 | ruby | 2.7.2-r0 | — |
| Alpine v3.21 | ruby | 2.7.2-r0 | — |
| Alpine v3.20 | ruby | 2.7.2-r0 | — |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | ruby | 2.7.2-r0 | — |
| Alpine v3.18 | ruby | 2.7.2-r0 | — |
| Alpine v3.17 | ruby | 2.7.2-r0 | — |
| Alpine v3.16 | ruby | 2.7.2-r0 | — |
| Alpine v3.15 | ruby | 2.7.2-r0 | — |
| Alpine v3.14 | ruby | 2.7.2-r0 | — |
| Alpine v3.13 | ruby | 2.7.2-r0 | — |
| Alpine v3.12 | ruby | 2.7.2-r0 | — |
| Alpine v3.11 | ruby | 2.6.6-r3 | — |
| Alpine v3.10 | ruby | 2.5.8-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | ruby +5 | 2.0.0.648-36.amzn2.0.2 | ALAS2-2021-1641 |
| Amazon Linux 2 | rubygem-bigdecimal | 1.2.0-36.amzn2.0.2 | ALAS2-2021-1641 |
| Amazon Linux 2 | rubygem-io-console | 0.4.2-36.amzn2.0.2 | ALAS2-2021-1641 |
| Amazon Linux 2 | rubygem-json | 1.7.7-36.amzn2.0.2 | ALAS2-2021-1641 |
| Amazon Linux 2 | rubygem-minitest | 4.3.2-36.amzn2.0.2 | ALAS2-2021-1641 |
| Amazon Linux 2 | rubygem-psych | 2.0.0-36.amzn2.0.2 | ALAS2-2021-1641 |
| Amazon Linux 2 | rubygem-rake | 0.9.6-36.amzn2.0.2 | ALAS2-2021-1641 |
| Amazon Linux 2 | rubygem-rdoc | 4.0.0-36.amzn2.0.2 | ALAS2-2021-1641 |
| Amazon Linux 2 | rubygems +1 | 2.0.14.1-36.amzn2.0.2 | ALAS2-2021-1641 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | ruby +4 | 2.5.9-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | ruby-default-gems | 2.7.3-136.module+el8.4.0+20239+cbf59dc8 | ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-abrt +1 | 0.3.0-4.module+el8.1.0+5406+ce01f9b9 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-bigdecimal | 1.3.4-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-bson +1 | 4.3.0-2.module+el8.3.0+7756+e45777e9 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-bundler +1 | 1.16.1-3.module+el8.3.0+7756+e45777e9 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-did_you_mean | 1.2.0-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587 |
| Oracle Linux 8 | rubygem-io-console | 0.4.6-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-irb | 1.0.0-107.module+el8.4.0+20235+1e5b8be3 | ELSA-2021-2588, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-json | 2.1.0-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-minitest | 5.10.3-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-mongo +1 | 2.5.1-2.module+el8.3.0+7756+e45777e9 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-mysql2 +1 | 0.4.10-4.module+el8.3.0+7756+e45777e9 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-net-telnet | 0.1.1-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-openssl | 2.1.2-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-pg +1 | 1.0.0-2.module+el8.3.0+7756+e45777e9 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-power_assert | 1.1.1-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-psych | 3.0.2-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-rake | 12.3.3-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-rdoc | 6.0.1.1-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-test-unit | 3.2.7-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygem-xmlrpc | 0.3.0-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
| Oracle Linux 8 | rubygems +1 | 2.7.6.3-107.module+el8.4.0+20203+c00aa653 | ELSA-2021-2588, ELSA-2021-2587, ELSA-2021-2584 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
metapox/CVE-2020-25613 ★ 0 · Mar 30, 2022
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | webrick | >= 1.6.0, < 1.6.1 | 1.6.1 | GHSA-gwfg-cqmg-cf8f |
| RubyGems | webrick | >= 1.5.0, < 1.5.1 | 1.5.1 | GHSA-gwfg-cqmg-cf8f |
| RubyGems | webrick | < 1.4.4 | 1.4.4 | GHSA-gwfg-cqmg-cf8f |
Advisories 30
- ALSA-2021:2587 Moderate: ruby:2.5 security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 2, 2026
- ALSA-2021:2584 Moderate: ruby:2.7 security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 2, 2026
- ALSA-2021:2588 Moderate: ruby:2.6 security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 2, 2026
- RHSA-2022:0582 Red Hat Security Advisory: ruby:2.6 security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2022:0581 Red Hat Security Advisory: ruby:2.6 security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2026:7305 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 6, 2026
- RHSA-2026:8838 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 6, 2026
- RHSA-2026:7307 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 6, 2026
- RHSA-2021:2587 Red Hat Security Advisory: ruby:2.5 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 9, 2026
- RHSA-2021:2588 Red Hat Security Advisory: ruby:2.6 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 9, 2026
- RHSA-2021:2230 Red Hat Security Advisory: rh-ruby26-ruby security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 9, 2026
- RHSA-2021:2584 Red Hat Security Advisory: ruby:2.7 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 9, 2026
- RHSA-2021:2229 Red Hat Security Advisory: rh-ruby27-ruby security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 9, 2026
- RHSA-2021:2104 Red Hat Security Advisory: rh-ruby25-ruby security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 9, 2026
- WID-SEC-2023-1109 Ruby: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · May 7, 2026
- USN-4882-1 ruby2.3, ruby2.5, ruby2.7 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3408-1 jruby - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2391-1 ruby2.3 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2392-1 jruby - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:2588 Moderate: ruby:2.6 security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2021:2587 Moderate: ruby:2.5 security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2021:2584 Moderate: ruby:2.7 security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2024:11310-1 libruby2_7-2_7-2.7.3-3.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0933-1 Security update for ruby2.5 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0471-1 Security update for ruby2.5 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3837-1 Security update for ruby2.1 SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2021-1641 Moderate: ruby security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 17, 2023
- ELSA-2021-2584 Moderate: ruby:2.7 security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 7, 2021
- ELSA-2021-2588 Moderate: ruby:2.6 security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 7, 2021
- ELSA-2021-2587 Moderate: ruby:2.5 security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 2, 2021
References
- https://hackerone.com/reports/965267
- https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613/
- https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7
- FEDORA-2020-02ca18c2a0 vendor-advisory
- FEDORA-2020-fe2a7d7390 vendor-advisory
- https://security.netapp.com/advisory/ntap-20210115-0008/
- [debian-lts-announce] 20230430 [SECURITY] [DLA 3408-1] jruby security update mailing-list
- GLSA-202401-27 vendor-advisory