import ruby-2.5.3-104.module+el8.0.0+3250+4b7d6d43
This commit is contained in:
CentOS Sources
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@ -0,0 +1,168 @@
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diff --git a/lib/rubygems/installer.rb b/lib/rubygems/installer.rb
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index ee5fedeb64..a3f9571cf3 100644
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--- a/lib/rubygems/installer.rb
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+++ b/lib/rubygems/installer.rb
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@@ -707,9 +707,26 @@ def verify_gem_home(unpack = false) # :nodoc:
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unpack or File.writable?(gem_home)
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end
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- def verify_spec_name
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- return if spec.name =~ Gem::Specification::VALID_NAME_PATTERN
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- raise Gem::InstallError, "#{spec} has an invalid name"
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+ def verify_spec
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+ unless spec.name =~ Gem::Specification::VALID_NAME_PATTERN
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+ raise Gem::InstallError, "#{spec} has an invalid name"
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+ end
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+
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+ if spec.raw_require_paths.any?{|path| path =~ /\R/ }
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+ raise Gem::InstallError, "#{spec} has an invalid require_paths"
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+ end
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+
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+ if spec.extensions.any?{|ext| ext =~ /\R/ }
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+ raise Gem::InstallError, "#{spec} has an invalid extensions"
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+ end
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+
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+ if spec.specification_version.to_s =~ /\R/
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+ raise Gem::InstallError, "#{spec} has an invalid specification_version"
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+ end
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+
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+ if spec.dependencies.any? {|dep| dep.type =~ /\R/ || dep.name =~ /\R/ }
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+ raise Gem::InstallError, "#{spec} has an invalid dependencies"
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+ end
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end
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##
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@@ -836,9 +853,11 @@ def dir
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def pre_install_checks
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verify_gem_home options[:unpack]
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- ensure_loadable_spec
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+ # The name and require_paths must be verified first, since it could contain
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+ # ruby code that would be eval'ed in #ensure_loadable_spec
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+ verify_spec
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- verify_spec_name
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+ ensure_loadable_spec
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if options[:install_as_default]
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Gem.ensure_default_gem_subdirectories gem_home
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diff --git a/test/rubygems/test_gem_installer.rb b/test/rubygems/test_gem_installer.rb
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index 93b0482407..7f414d495d 100644
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--- a/test/rubygems/test_gem_installer.rb
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+++ b/test/rubygems/test_gem_installer.rb
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@@ -1474,6 +1474,112 @@ def spec.validate; end
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end
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end
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+ def test_pre_install_checks_malicious_name_before_eval
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+ spec = util_spec "malicious\n::Object.const_set(:FROM_EVAL, true)#", '1'
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+ def spec.full_name # so the spec is buildable
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+ "malicious-1"
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+ end
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+ def spec.validate(*args); end
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+
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+ util_build_gem spec
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+
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+ gem = File.join(@gemhome, 'cache', spec.file_name)
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+
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+ use_ui @ui do
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+ @installer = Gem::Installer.at gem
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+ e = assert_raises Gem::InstallError do
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+ @installer.pre_install_checks
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+ end
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+ assert_equal "#<Gem::Specification name=malicious\n::Object.const_set(:FROM_EVAL, true)# version=1> has an invalid name", e.message
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+ end
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+ refute defined?(::Object::FROM_EVAL)
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+ end
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+
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+ def test_pre_install_checks_malicious_require_paths_before_eval
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+ spec = util_spec "malicious", '1'
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+ def spec.full_name # so the spec is buildable
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+ "malicious-1"
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+ end
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+ def spec.validate(*args); end
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+ spec.require_paths = ["malicious\n``"]
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+
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+ util_build_gem spec
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+
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+ gem = File.join(@gemhome, 'cache', spec.file_name)
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+
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+ use_ui @ui do
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+ @installer = Gem::Installer.at gem
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+ e = assert_raises Gem::InstallError do
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+ @installer.pre_install_checks
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+ end
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+ assert_equal "#<Gem::Specification name=malicious version=1> has an invalid require_paths", e.message
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+ end
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+ end
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+
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+ def test_pre_install_checks_malicious_extensions_before_eval
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+ spec = util_spec "malicious", '1'
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+ def spec.full_name # so the spec is buildable
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+ "malicious-1"
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+ end
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+ def spec.validate(*args); end
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+ spec.extensions = ["malicious\n``"]
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+
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+ util_build_gem spec
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+
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+ gem = File.join(@gemhome, 'cache', spec.file_name)
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+
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+ use_ui @ui do
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+ @installer = Gem::Installer.at gem
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+ e = assert_raises Gem::InstallError do
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+ @installer.pre_install_checks
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+ end
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+ assert_equal "#<Gem::Specification name=malicious version=1> has an invalid extensions", e.message
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+ end
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+ end
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+
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+ def test_pre_install_checks_malicious_specification_version_before_eval
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+ spec = util_spec "malicious", '1'
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+ def spec.full_name # so the spec is buildable
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+ "malicious-1"
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+ end
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+ def spec.validate(*args); end
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+ spec.specification_version = "malicious\n``"
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+
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+ util_build_gem spec
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+
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+ gem = File.join(@gemhome, 'cache', spec.file_name)
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+
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+ use_ui @ui do
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+ @installer = Gem::Installer.at gem
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+ e = assert_raises Gem::InstallError do
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+ @installer.pre_install_checks
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+ end
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+ assert_equal "#<Gem::Specification name=malicious version=1> has an invalid specification_version", e.message
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+ end
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+ end
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+
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+ def test_pre_install_checks_malicious_dependencies_before_eval
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+ spec = util_spec "malicious", '1'
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+ def spec.full_name # so the spec is buildable
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+ "malicious-1"
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+ end
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+ def spec.validate(*args); end
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+ spec.add_dependency "b\nfoo", '> 5'
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+
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+ util_build_gem spec
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+
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+ gem = File.join(@gemhome, 'cache', spec.file_name)
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+
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+ use_ui @ui do
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+ @installer = Gem::Installer.at gem
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+ @installer.ignore_dependencies = true
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+ e = assert_raises Gem::InstallError do
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+ @installer.pre_install_checks
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+ end
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+ assert_equal "#<Gem::Specification name=malicious version=1> has an invalid dependencies", e.message
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+ end
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+ end
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+
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def test_shebang
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util_make_exec @spec, "#!/usr/bin/ruby"
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--
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2.21.0
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@ -21,7 +21,7 @@
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%endif
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%global release 103
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%global release 104
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%{!?release_string:%global release_string %{?development_release:0.}%{release}%{?development_release:.%{development_release}}%{?dist}}
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# The RubyGems library has to stay out of Ruby directory three, since the
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@ -154,6 +154,10 @@ Patch25: ruby-2.6.0-Update-for-tzdata-2018f.patch
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# https://bugs.ruby-lang.org/issues/15502
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# https://github.com/ruby/ruby/commit/6f9b40ea53d8f3fb2a5b1c7ac55c207d42c77ef4
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Patch11: ruby-2.6.0-Try-to-update-cert.patch
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# CVE-2019-8324: Installing a malicious gem may lead to arbitrary code execution
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# https://bugzilla.redhat.com/show_bug.cgi?id=1692520
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# https://github.com/rubygems/rubygems/commit/8e61a52f49c9530706cd73d2f1edc10f097e591f
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Patch26: ruby-2.5.4-fix-malicious-gem-to-lead-to-arbitrary-code-execution.patch
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# Fix some OpenSSL 1.1.1 test failures.
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# https://github.com/ruby/ruby/commit/1dfc377ae3b174b043d3f0ed36de57b0296b34d0
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@ -555,6 +559,7 @@ rm -rf ext/fiddle/libffi*
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%patch23 -p1
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%patch24 -p1
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%patch25 -p1
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%patch26 -p1
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# Provide an example of usage of the tapset:
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cp -a %{SOURCE3} .
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@ -1105,6 +1110,10 @@ OPENSSL_SYSTEM_CIPHERS_OVERRIDE=xyz_nonexistent_file OPENSSL_CONF='' \
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%{gem_dir}/specifications/xmlrpc-%{xmlrpc_version}.gemspec
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%changelog
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* Tue May 07 2019 Jun Aruga <jaruga@redhat.com> - 2.5.3-104
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- Prohibit arbitrary code execution when installing a malicious gem.
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Resolves: CVE-2019-8324
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* Fri Jan 11 2019 Jun Aruga <jaruga@redhat.com> - 2.5.3-103
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- Refresh expired certificates to fix FTBFS.
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