diff options
Diffstat (limited to 'meta/recipes-devtools/ruby/ruby/CVE-2021-33621.patch')
| -rw-r--r-- | meta/recipes-devtools/ruby/ruby/CVE-2021-33621.patch | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/meta/recipes-devtools/ruby/ruby/CVE-2021-33621.patch b/meta/recipes-devtools/ruby/ruby/CVE-2021-33621.patch new file mode 100644 index 0000000000..cc2f9853db --- /dev/null +++ b/meta/recipes-devtools/ruby/ruby/CVE-2021-33621.patch @@ -0,0 +1,139 @@ +From 64c5045c0a6b84fdb938a8465a0890e5f7162708 Mon Sep 17 00:00:00 2001 +From: Yusuke Endoh <mame@ruby-lang.org> +Date: Tue, 22 Nov 2022 10:49:27 +0900 +Subject: [PATCH] Prevent CRLF injection + +Throw a RuntimeError if the HTTP response header contains CR or LF to +prevent HTTP response splitting. + +https://hackerone.com/reports/1204695 + +Upstream-Status: Backport [https://github.com/ruby/cgi/commit/64c5045c0a6b84fdb938a8465a0890e5f7162708] +CVE: CVE-2021-33621 +Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com> +--- + lib/cgi/core.rb | 45 +++++++++++++++++++++++-------------- + test/cgi/test_cgi_header.rb | 8 +++++++ + 2 files changed, 36 insertions(+), 17 deletions(-) + +diff --git a/lib/cgi/core.rb b/lib/cgi/core.rb +index bec76e0..62e6068 100644 +--- a/lib/cgi/core.rb ++++ b/lib/cgi/core.rb +@@ -188,17 +188,28 @@ class CGI + # Using #header with the HTML5 tag maker will create a <header> element. + alias :header :http_header + ++ def _no_crlf_check(str) ++ if str ++ str = str.to_s ++ raise "A HTTP status or header field must not include CR and LF" if str =~ /[\r\n]/ ++ str ++ else ++ nil ++ end ++ end ++ private :_no_crlf_check ++ + def _header_for_string(content_type) #:nodoc: + buf = ''.dup + if nph?() +- buf << "#{$CGI_ENV['SERVER_PROTOCOL'] || 'HTTP/1.0'} 200 OK#{EOL}" ++ buf << "#{_no_crlf_check($CGI_ENV['SERVER_PROTOCOL']) || 'HTTP/1.0'} 200 OK#{EOL}" + buf << "Date: #{CGI.rfc1123_date(Time.now)}#{EOL}" +- buf << "Server: #{$CGI_ENV['SERVER_SOFTWARE']}#{EOL}" ++ buf << "Server: #{_no_crlf_check($CGI_ENV['SERVER_SOFTWARE'])}#{EOL}" + buf << "Connection: close#{EOL}" + end +- buf << "Content-Type: #{content_type}#{EOL}" ++ buf << "Content-Type: #{_no_crlf_check(content_type)}#{EOL}" + if @output_cookies +- @output_cookies.each {|cookie| buf << "Set-Cookie: #{cookie}#{EOL}" } ++ @output_cookies.each {|cookie| buf << "Set-Cookie: #{_no_crlf_check(cookie)}#{EOL}" } + end + return buf + end # _header_for_string +@@ -213,9 +224,9 @@ class CGI + ## NPH + options.delete('nph') if defined?(MOD_RUBY) + if options.delete('nph') || nph?() +- protocol = $CGI_ENV['SERVER_PROTOCOL'] || 'HTTP/1.0' ++ protocol = _no_crlf_check($CGI_ENV['SERVER_PROTOCOL']) || 'HTTP/1.0' + status = options.delete('status') +- status = HTTP_STATUS[status] || status || '200 OK' ++ status = HTTP_STATUS[status] || _no_crlf_check(status) || '200 OK' + buf << "#{protocol} #{status}#{EOL}" + buf << "Date: #{CGI.rfc1123_date(Time.now)}#{EOL}" + options['server'] ||= $CGI_ENV['SERVER_SOFTWARE'] || '' +@@ -223,38 +234,38 @@ class CGI + end + ## common headers + status = options.delete('status') +- buf << "Status: #{HTTP_STATUS[status] || status}#{EOL}" if status ++ buf << "Status: #{HTTP_STATUS[status] || _no_crlf_check(status)}#{EOL}" if status + server = options.delete('server') +- buf << "Server: #{server}#{EOL}" if server ++ buf << "Server: #{_no_crlf_check(server)}#{EOL}" if server + connection = options.delete('connection') +- buf << "Connection: #{connection}#{EOL}" if connection ++ buf << "Connection: #{_no_crlf_check(connection)}#{EOL}" if connection + type = options.delete('type') +- buf << "Content-Type: #{type}#{EOL}" #if type ++ buf << "Content-Type: #{_no_crlf_check(type)}#{EOL}" #if type + length = options.delete('length') +- buf << "Content-Length: #{length}#{EOL}" if length ++ buf << "Content-Length: #{_no_crlf_check(length)}#{EOL}" if length + language = options.delete('language') +- buf << "Content-Language: #{language}#{EOL}" if language ++ buf << "Content-Language: #{_no_crlf_check(language)}#{EOL}" if language + expires = options.delete('expires') + buf << "Expires: #{CGI.rfc1123_date(expires)}#{EOL}" if expires + ## cookie + if cookie = options.delete('cookie') + case cookie + when String, Cookie +- buf << "Set-Cookie: #{cookie}#{EOL}" ++ buf << "Set-Cookie: #{_no_crlf_check(cookie)}#{EOL}" + when Array + arr = cookie +- arr.each {|c| buf << "Set-Cookie: #{c}#{EOL}" } ++ arr.each {|c| buf << "Set-Cookie: #{_no_crlf_check(c)}#{EOL}" } + when Hash + hash = cookie +- hash.each_value {|c| buf << "Set-Cookie: #{c}#{EOL}" } ++ hash.each_value {|c| buf << "Set-Cookie: #{_no_crlf_check(c)}#{EOL}" } + end + end + if @output_cookies +- @output_cookies.each {|c| buf << "Set-Cookie: #{c}#{EOL}" } ++ @output_cookies.each {|c| buf << "Set-Cookie: #{_no_crlf_check(c)}#{EOL}" } + end + ## other headers + options.each do |key, value| +- buf << "#{key}: #{value}#{EOL}" ++ buf << "#{_no_crlf_check(key)}: #{_no_crlf_check(value)}#{EOL}" + end + return buf + end # _header_for_hash +diff --git a/test/cgi/test_cgi_header.rb b/test/cgi/test_cgi_header.rb +index bab2d03..ec2f4de 100644 +--- a/test/cgi/test_cgi_header.rb ++++ b/test/cgi/test_cgi_header.rb +@@ -176,6 +176,14 @@ class CGIHeaderTest < Test::Unit::TestCase + end + + ++ def test_cgi_http_header_crlf_injection ++ cgi = CGI.new ++ assert_raise(RuntimeError) { cgi.http_header("text/xhtml\r\nBOO") } ++ assert_raise(RuntimeError) { cgi.http_header("type" => "text/xhtml\r\nBOO") } ++ assert_raise(RuntimeError) { cgi.http_header("status" => "200 OK\r\nBOO") } ++ assert_raise(RuntimeError) { cgi.http_header("location" => "text/xhtml\r\nBOO") } ++ end ++ + + instance_methods.each do |method| + private method if method =~ /^test_(.*)/ && $1 != ENV['TEST'] +-- +2.25.1 + |