Bump RubyGems version for CVE fixes

2.3/alpine3.7/Dockerfile

@@ -13,7 +13,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.3
 ENV RUBY_VERSION 2.3.8
 ENV RUBY_DOWNLOAD_SHA256 910f635d84fd0d81ac9bdee0731279e6026cb4cd1315bbbb5dfb22e09c5c1dfe
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.3/alpine3.8/Dockerfile

@@ -13,7 +13,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.3
 ENV RUBY_VERSION 2.3.8
 ENV RUBY_DOWNLOAD_SHA256 910f635d84fd0d81ac9bdee0731279e6026cb4cd1315bbbb5dfb22e09c5c1dfe
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.3/jessie/Dockerfile

@@ -10,7 +10,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.3
 ENV RUBY_VERSION 2.3.8
 ENV RUBY_DOWNLOAD_SHA256 910f635d84fd0d81ac9bdee0731279e6026cb4cd1315bbbb5dfb22e09c5c1dfe
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.3/jessie/slim/Dockerfile

@@ -23,7 +23,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.3
 ENV RUBY_VERSION 2.3.8
 ENV RUBY_DOWNLOAD_SHA256 910f635d84fd0d81ac9bdee0731279e6026cb4cd1315bbbb5dfb22e09c5c1dfe
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.3/stretch/Dockerfile

@@ -10,7 +10,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.3
 ENV RUBY_VERSION 2.3.8
 ENV RUBY_DOWNLOAD_SHA256 910f635d84fd0d81ac9bdee0731279e6026cb4cd1315bbbb5dfb22e09c5c1dfe
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.3/stretch/slim/Dockerfile

@@ -23,7 +23,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.3
 ENV RUBY_VERSION 2.3.8
 ENV RUBY_DOWNLOAD_SHA256 910f635d84fd0d81ac9bdee0731279e6026cb4cd1315bbbb5dfb22e09c5c1dfe
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.4/alpine3.8/Dockerfile

@@ -13,7 +13,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.4
 ENV RUBY_VERSION 2.4.5
 ENV RUBY_DOWNLOAD_SHA256 2f0cdcce9989f63ef7c2939bdb17b1ef244c4f384d85b8531d60e73d8cc31eeb
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.4/alpine3.9/Dockerfile

@@ -13,7 +13,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.4
 ENV RUBY_VERSION 2.4.5
 ENV RUBY_DOWNLOAD_SHA256 2f0cdcce9989f63ef7c2939bdb17b1ef244c4f384d85b8531d60e73d8cc31eeb
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.4/jessie/Dockerfile

@@ -10,7 +10,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.4
 ENV RUBY_VERSION 2.4.5
 ENV RUBY_DOWNLOAD_SHA256 2f0cdcce9989f63ef7c2939bdb17b1ef244c4f384d85b8531d60e73d8cc31eeb
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.4/jessie/slim/Dockerfile

@@ -23,7 +23,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.4
 ENV RUBY_VERSION 2.4.5
 ENV RUBY_DOWNLOAD_SHA256 2f0cdcce9989f63ef7c2939bdb17b1ef244c4f384d85b8531d60e73d8cc31eeb
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.4/stretch/Dockerfile

@@ -10,7 +10,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.4
 ENV RUBY_VERSION 2.4.5
 ENV RUBY_DOWNLOAD_SHA256 2f0cdcce9989f63ef7c2939bdb17b1ef244c4f384d85b8531d60e73d8cc31eeb
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.4/stretch/slim/Dockerfile

@@ -23,7 +23,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.4
 ENV RUBY_VERSION 2.4.5
 ENV RUBY_DOWNLOAD_SHA256 2f0cdcce9989f63ef7c2939bdb17b1ef244c4f384d85b8531d60e73d8cc31eeb
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.5/alpine3.8/Dockerfile

@@ -13,7 +13,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.5
 ENV RUBY_VERSION 2.5.3
 ENV RUBY_DOWNLOAD_SHA256 1cc9d0359a8ea35fc6111ec830d12e60168f3b9b305a3c2578357d360fcf306f
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.5/alpine3.9/Dockerfile

@@ -13,7 +13,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.5
 ENV RUBY_VERSION 2.5.3
 ENV RUBY_DOWNLOAD_SHA256 1cc9d0359a8ea35fc6111ec830d12e60168f3b9b305a3c2578357d360fcf306f
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.5/stretch/Dockerfile

@@ -10,7 +10,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.5
 ENV RUBY_VERSION 2.5.3
 ENV RUBY_DOWNLOAD_SHA256 1cc9d0359a8ea35fc6111ec830d12e60168f3b9b305a3c2578357d360fcf306f
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

2.5/stretch/slim/Dockerfile

@@ -23,7 +23,7 @@ RUN mkdir -p /usr/local/etc \
 ENV RUBY_MAJOR 2.5
 ENV RUBY_VERSION 2.5.3
 ENV RUBY_DOWNLOAD_SHA256 1cc9d0359a8ea35fc6111ec830d12e60168f3b9b305a3c2578357d360fcf306f
-ENV RUBYGEMS_VERSION 3.0.1
+ENV RUBYGEMS_VERSION 3.0.3
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built

update.sh

@@ -18,7 +18,7 @@ latest_gem_version() {
 }
 
 # https://github.com/docker-library/ruby/issues/246
-rubygems='3.0.1'
+rubygems='3.0.3'
 declare -A newEnoughRubygems=(
 	[2.6]=1 # 3.0.1+
 )