RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a DNS hijack attack.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ruby | Ruby-lang | 1.9 (including) | 1.9 (including) |
| Ruby | Ruby-lang | 1.9.1 (including) | 1.9.1 (including) |
| Ruby | Ruby-lang | 1.9.2 (including) | 1.9.2 (including) |
| Ruby | Ruby-lang | 1.9.3 (including) | 1.9.3 (including) |
| Ruby | Ruby-lang | 2.0.0 (including) | 2.0.0 (including) |
| Ruby | Ruby-lang | 2.1 (including) | 2.1 (including) |
| Ruby | Ruby-lang | 2.1.1 (including) | 2.1.1 (including) |
| Ruby | Ruby-lang | 2.1.2 (including) | 2.1.2 (including) |
| Ruby | Ruby-lang | 2.1.3 (including) | 2.1.3 (including) |
| Ruby | Ruby-lang | 2.1.4 (including) | 2.1.4 (including) |
| Ruby | Ruby-lang | 2.1.5 (including) | 2.1.5 (including) |
| Ruby | Ruby-lang | 2.2.0 (including) | 2.2.0 (including) |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | RedHat | rh-ruby22-ruby-0:2.2.2-12.el6 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | RedHat | rh-ruby22-ruby-0:2.2.2-12.el6 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | RedHat | rh-ruby22-ruby-0:2.2.2-12.el6 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-ruby22-ruby-0:2.2.2-12.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | RedHat | rh-ruby22-ruby-0:2.2.2-12.el7 | * |
| Ruby2.1 | Ubuntu | upstream | * |
| Ruby2.1 | Ubuntu | utopic | * |
| Ruby2.1 | Ubuntu | vivid | * |
| Ruby2.2 | Ubuntu | upstream | * |
| Rubygems | Ubuntu | upstream | * |