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CVE-2021-33621

Published: 18 November 2022

The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object.

Priority

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
jruby
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Does not exist

kinetic Does not exist

lunar Needs triage

trusty Needs triage

upstream Needs triage

xenial Needs triage

ruby1.9.1
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Ignored
(out of standard support)
upstream Needs triage

xenial Does not exist

ruby2.0
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Ignored
(out of standard support)
upstream Needs triage

xenial Does not exist

ruby2.3
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream
Released
xenial
Released (2.3.1-2~ubuntu16.04.16+esm4)
Patches:
upstream: https://github.com/ruby/cgi/commit/64c5045c0a6b84fdb938a8465a0890e5f7162708 (0.3.5)
upstream: https://github.com/ruby/cgi/commit/30107a4797f14227568913499a9a0bb4285de63b (0.3.5)
upstream: https://github.com/ruby/cgi/commit/b46d41c36380e04f6388970b5ef05c687f4d1819 (0.3.5)
upstream: https://github.com/ruby/cgi/commit/35317005f853112295de8b8bd99643e66dff4e33 (0.2.2)
upstream: https://github.com/ruby/cgi/commit/3b5db783557a18150a06776b4af07ef658afb7f5 (0.2.2)
upstream: https://github.com/ruby/cgi/commit/245b3f7e7446aa0bbd0ab09bf8a8bbc9e098f3ff (0.2.2)
upstream: https://github.com/ruby/cgi/commit/85e22c30b4e410d1dc57f21160cc24b236b8cdc6 (1.0.2)
upstream: https://github.com/ruby/cgi/commit/5f569ecdb45dc5418f0fd3d1378ba1bde5107ea5 (1.0.2)
upstream: https://github.com/ruby/cgi/commit/107a0c67f922044dc78e2fde94f991206267a6a0 (1.0.2)
ruby2.5
Launchpad, Ubuntu, Debian
bionic
Released (2.5.1-1ubuntu1.13)
focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

ruby2.7
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (2.7.0-5ubuntu1.8)
jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

ruby3.0
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy
Released (3.0.2-7ubuntu2.3)
kinetic
Released (3.0.4-7ubuntu0.1)
lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

ruby3.1
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

kinetic Needs triage

lunar Not vulnerable
(3.1.2-6)
trusty Does not exist

upstream
Released (3.1.2-4)
xenial Does not exist

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H