Segmentation fault using TLS after uprgrade to nodejs 6.7.0 / CentOS 7

Version: 6.7.0
Platform: CentOS 7
Subsystem:

Segmentation fault using TLS after uprgrade to nodejs 6.7.0 / CentOS 7
I am using a certificate from Let's Encrypt.

#0 0x00007f39c2e8dce0 in asn1_enc_restore (len=len@entry=0x7fff46fb1d74, out=out@entry=0x0, pval=pval@entry=0x1eec3f0, it=it@entry=0x7f39c3150480 )
at tasn_utl.c:190
190 if (!enc || enc->modified)

(gdb) bt
#0 0x00007f39c2e8dce0 in asn1_enc_restore (len=len@entry=0x7fff46fb1d74, out=out@entry=0x0, pval=pval@entry=0x1eec3f0, it=it@entry=0x7f39c3150480 )
at tasn_utl.c:190
#1 0x00007f39c2e8af3b in ASN1_item_ex_i2d (pval=pval@entry=0x1eec3f0, out=out@entry=0x0, it=0x7f39c3150480 , tag=tag@entry=-1, aclass=aclass@entry=0)
at tasn_enc.c:202
#2 0x00007f39c2e8b3e1 in asn1_template_ex_i2d (pval=0x1eec3f0, out=out@entry=0x0, tt=tt@entry=0x7f39c3156760 , tag=tag@entry=-1, iclass=iclass@entry=0)
at tasn_enc.c:413
#3 0x00007f39c2e8b1bb in ASN1_item_ex_i2d (pval=pval@entry=0x7fff46fb1ed8, out=out@entry=0x0, it=it@entry=0x7f39c3150400 , tag=16, tag@entry=-1,
aclass=aclass@entry=0) at tasn_enc.c:231
#4 0x00007f39c2e8b2bf in asn1_item_flags_i2d (val=val@entry=0x1eec3f0, out=out@entry=0x0, it=it@entry=0x7f39c3150400 , flags=flags@entry=0) at tasn_enc.c:122
#5 0x00007f39c2e8b367 in ASN1_item_i2d (val=val@entry=0x1eec3f0, out=out@entry=0x0, it=it@entry=0x7f39c3150400 ) at tasn_enc.c:91
#6 0x00007f39c2e868cc in i2d_X509 (a=a@entry=0x1eec3f0, out=out@entry=0x0) at x_x509.c:141
#7 0x00007f39c319a7bd in ssl3_add_cert_to_buf (buf=0x1e41510, l=0x7fff46fb1f78, x=0x1eec3f0) at s3_both.c:335
#8 0x00007f39c319ae93 in ssl3_output_cert_chain (s=s@entry=0x1eedd40, x=) at s3_both.c:405
#9 0x00007f39c318e645 in ssl3_send_server_certificate (s=s@entry=0x1eedd40) at s3_srvr.c:3398
#10 0x00007f39c318fabd in ssl3_accept (s=0x1eedd40) at s3_srvr.c:417
#11 0x00007f39c319d368 in ssl23_accept (s=0x1eedd40) at s23_srvr.c:210
#12 0x0000000000e55e95 in node::crypto::Connection::ClearOut (args=...) at ../src/node_crypto.cc:3113
#13 0x0000000000729644 in v8::internal::FunctionCallbackArguments::Call (this=this@entry=0x7fff46fb22c0,
f=f@entry=0xe55c80 node::crypto::Connection::ClearOut(v8::FunctionCallbackInfo<v8::Value const&)>) at ../deps/v8/src/api-arguments.cc:16
#14 0x00000000007831e4 in v8::internal::(anonymous namespace)::HandleApiCallHelper (isolate=isolate@entry=0x1d2f7a0, args=...) at ../deps/v8/src/builtins.cc:4322
#15 0x00000000007839ce in v8::internal::Builtin_Impl_HandleApiCall (args=..., isolate=isolate@entry=0x1d2f7a0) at ../deps/v8/src/builtins.cc:4340
#16 0x0000000000783b7e in v8::internal::Builtin_HandleApiCall (args_length=, args_object=0x7fff46fb24c0, isolate=0x1d2f7a0) at ../deps/v8/src/builtins.cc:4337
#17 0x00001498485092a7 in ?? ()
#18 0x0000000000000000 in ?? ()```

/cc @nodejs/crypto

OpenSSL bug? It almost has to be, going by the stack trace.

Does v6.6.0 work for you? v6.7.0 upgraded openssl to 1.0.2j. It's conceivable you are hitting a regression.

Sounds like you're using the epel package. If so, your issue may be caused by their own patch to build against openssl 1.0.1. You should report it to them unless you can reproduce with the official nodejs.org binaries.

http://pkgs.fedoraproject.org/cgit/rpms/nodejs.git/plain/0002-Use-openssl-1.0.1.patch?h=epel7

@deburau

/cc @deburau

I've reported this in EPEL: https://bugzilla.redhat.com/show_bug.cgi?id=1402372

I can reliably reproduce this issue when loading multiple certificates in at once and passing that through, here's a small reproducible test case:

const request = require('request');
const fs = require('fs');

const CERT = fs.readFileSync('/etc/pki/tls/certs/client.crt') + '\n' + fs.readFileSync('/etc/pki/tls/certs/client.crt');
const KEY = fs.readFileSync('/etc/pki/tls/private/client.key');

request({
    method: 'POST',
    uri: 'https://api.test.bbc.co.uk',
    cert: CERT,
    key: KEY,
}, (err, response, body) => {
    console.log(err);
    console.log(body);
});

This is the same issue as #9551, see also https://bugzilla.redhat.com/show_bug.cgi?id=1394948.

I'll go ahead and close out this issue. It doesn't appear to be a bug on our end, it's due to a patch that Redhat is carrying to build against an older openssl version.

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Segmentation fault using TLS after uprgrade to nodejs 6.7.0 / CentOS 7 #9015

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Segmentation fault using TLS after uprgrade to nodejs 6.7.0 / CentOS 7 #9015

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