An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ruby | Ruby-lang | * | 2.6.7 (including) |
| Ruby | Ruby-lang | 2.7.0 (including) | 2.7.3 (including) |
| Ruby | Ruby-lang | 3.0.0 (including) | 3.0.1 (including) |
| Red Hat Enterprise Linux 8 | RedHat | ruby:2.7-8040020210728141159.522a0ee4 | * |
| Red Hat Enterprise Linux 8 | RedHat | ruby:2.6-8050020211215144356.c5368500 | * |
| Red Hat Enterprise Linux 8 | RedHat | ruby:2.5-8050020220216195847.c5368500 | * |
| Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | RedHat | ruby:2.6-8010020220201152941.c27ad7f8 | * |
| Red Hat Enterprise Linux 8.2 Extended Update Support | RedHat | ruby:2.6-8020020220201131207.4cda2c84 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support | RedHat | ruby:2.6-8040020220131135901.522a0ee4 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-ruby27-ruby-0:2.7.4-130.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-ruby30-ruby-0:3.0.2-148.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-ruby26-ruby-0:2.6.9-120.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS | RedHat | rh-ruby27-ruby-0:2.7.4-130.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS | RedHat | rh-ruby30-ruby-0:3.0.2-148.el7 | * |
| Ruby1.9.1 | Ubuntu | trusty | * |
| Ruby2.0 | Ubuntu | trusty | * |
| Ruby2.3 | Ubuntu | esm-infra/xenial | * |
| Ruby2.3 | Ubuntu | xenial | * |
| Ruby2.5 | Ubuntu | bionic | * |
| Ruby2.7 | Ubuntu | focal | * |
| Ruby2.7 | Ubuntu | groovy | * |
| Ruby2.7 | Ubuntu | hirsute | * |
| Ruby2.7 | Ubuntu | impish | * |