Question

我试图在装有ARMv7处理器的Synology DS215j上安装ruby 2.2.4或2.3.0。我使用optware-ng来安装gcc，make，openssl，openssl-dev和zlib。我根据README中的说明安装了rbenv（版本1.0.0-19-g29b4da7）和ruby-build插件。

这些是使用optware-ng

安装的软件包及其版本

binutils - 2.25.1-1
gcc - 5.3.0-6
gconv-modules - 2.21-3
glibc-opt - 2.21-4
libc-dev - 2.21-1
libgmp - 6.0.0a-1
libmpc - 1.0.2-1
libmpfr - 3.1.3-1
libnsl - 2.21-3
libstdc++ - 6.0.21-6
make - 4.1-1
ncurses - 5.7-4
openssl - 1.0.2f-1
openssl-dev - 1.0.2f-1
readline - 6.1-2
ruby - 2.2.0-1
screen - 4.2.1-2
termcap - 1.3.1-3
zlib - 1.2.8-2

当我在两种情况下运行rbenv install 2.2.4或rbenv install 2.3.0时，构建失败并显示错误消息＆＃34;未定义的符号：SSLv2_method＆＃34;。这是2.2.4版本的错误：

installing bundle gems:       /var/services/homes/florian/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0 (build_info, cache, doc, extensions, gems, specifications)
/tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require': /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/.ext/armv7l-linux-eabihf/openssl.so: undefined symbol: SSLv2_method - /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/.ext/armv7l-linux-eabihf/openssl.so (LoadError)
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/.ext/common/openssl.rb:17:in `<top (required)>'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/security.rb:11:in `<top (required)>'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/package.rb:43:in `<top (required)>'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/dependency_installer.rb:3:in `<top (required)>'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /tmp/ruby-build.20160329115213.2672/ruby-2.2.4/lib/rubygems.rb:556:in `install'
    from ./tool/rbinstall.rb:722:in `block (2 levels) in <main>'
    from ./tool/rbinstall.rb:721:in `each'
    from ./tool/rbinstall.rb:721:in `block in <main>'
    from ./tool/rbinstall.rb:757:in `call'
    from ./tool/rbinstall.rb:757:in `block in <main>'
    from ./tool/rbinstall.rb:754:in `each'
    from ./tool/rbinstall.rb:754:in `<main>'
uncommon.mk:246: recipe for target 'do-install-all' failed
make: *** [do-install-all] Error 1

这似乎与rubygems中的某些内容有关。

有趣的是，我自己尝试构建ruby的原因是，当我尝试安装gem时，Synology 6提供的ruby版本会返回类似的错误：

florian@synology:~/.rbenv/plugins$ /usr/bin/gem install rails
ERROR:  Loading command: install (LoadError)
        /usr/lib/ruby/2.3.0/armle-linux-gnu/openssl.so: undefined symbol: SSLv2_method - /usr/lib/ruby/2.3.0/armle-linux-gnu/openssl.so
ERROR:  While executing gem ... (NoMethodError)
    undefined method `invoke_with_build_args' for nil:NilClass

什么可能导致这些问题，我该如何解决？

Answer 1

当我在两种情况下运行rbenv install 2.2.4或rbenv install 2.3.0时，构建失败并显示错误消息"undefined symbol: SSLv2_method" ...

可能导致这些问题的原因......

由于CVE-2016-0800（DROWN Attack），3月份SSLv2设备已从OpenSSL中完全删除。

我认为由于您遇到的影响，完全删除有点苛刻。应该有警告和过渡期。它应该发生在10年前左右。

我认为SSLv2_method，SSLv2_client_method和SSLv2_server_method应该设置一个适当的错误代码，例如ERR_R_REMOVED_INSECURE，而不是由于DROWN完全删除，并返回NULL。 <openssl/opensslconf.h>也应该无条件地设置OPENSSL_NO_SSL2。

OpenSSL意识到他们破坏了ABI兼容性并将符号添加回1.0.2 Commit 133138569f37d149。签入时再次提供符号SSLv2_method，SSLv2_client_method和SSLv2_server_method，但它们返回NULL而不设置错误代码。他们也没有定义OPENSSL_NO_SSL2。另请参阅[openssl.org #4398] BUG / 1.0.2g breaks CURL extension。

SSLv2已经15或20年不安全了。 Ruby之类的软件包不应该引用这些符号。您应该针对Ruby提交安全错误报告以引用该符号。

......我怎么解决它们？

要解决此问题，我相信您需要（1）等待OpenSSL 1.0.2h，（2），手动修补OpenSSL 1.0.2g，或（3）删除对SSLv2_method的所有Ruby引用，{ {1}}和SSLv2_client_method。

这里是您需要的补丁（2），手动修补OpenSSL 1.0.2g：

SSLv2_server_method

您还应该使用至少diff --git a/ssl/s2_meth.c b/ssl/s2_meth.c index b312f17..d46e2f5 100644 --- a/ssl/s2_meth.c +++ b/ssl/s2_meth.c @@ -74,8 +74,8 @@ IMPLEMENT_ssl2_meth_func(SSLv2_method, ssl2_accept, ssl2_connect, ssl2_get_method) #else /* !OPENSSL_NO_SSL2 */ -# if PEDANTIC -static void *dummy = &dummy; -# endif +SSL_METHOD *SSLv2_method(void) { return NULL; } +SSL_METHOD *SSLv2_client_method(void) { return NULL; } +SSL_METHOD *SSLv2_server_method(void) { return NULL; } #endif标志配置和编译OpenSSL，因为它们是已知的安全问题。配置选项定义no-ssl2 no-ssl3 no-comp中的OPENSSL_NO_SSL2，OPENSSL_NO_SSL3和OPENSSL_NO_COMP。

Answer 2

经过多次尝试和大量搜索后，我发现了ruby-build issue并重新阅读ruby-build wiki中的建议，这些说明建议其他平台安装autoconf。我安装了automaker，autoconf和gdbm（我在ruby-build日志中发现了一些警告），ipkg没有直接帮助。只有在我将rbenv与RUBY_CONFIGURE_OPTS=--with-openssl-dir=/opt作为前缀之后才有效。

作为参考，这些是我用ipkg安装的软件包

autoconf - 2.69-1
automake - 1.15-3
binutils - 2.25.1-1
gcc - 5.3.0-6
gconv-modules - 2.21-3
gdbm - 1.8.3-4
glibc-opt - 2.21-4
libc-dev - 2.21-1
libgmp - 6.0.0a-1
libmpc - 1.0.2-1
libmpfr - 3.1.3-1
libnsl - 2.21-3
libstdc++ - 6.0.21-6
m4 - 1.4.17-1
make - 4.1-1
ncurses - 5.7-4
openssl - 1.0.2f-1
openssl-dev - 1.0.2f-1
readline - 6.1-2
ruby - 2.2.0-1
screen - 4.2.1-2
termcap - 1.3.1-3
zlib - 1.2.8-2

这是最终为我工作的rbenv命令

RUBY_CONFIGURE_OPTS=--with-openssl-dir=/opt rbenv install 2.3.0 -v

使用rbenv和ruby-build构建ruby时会出现未定义的符号：SSLv2_method

2 个答案: