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nodejs/test/parallel/test-crypto-hash-stream-pipe.js
Tobias Nießen fc50e6bcc8 crypto: fix crash when calling digest after piping
When piping data into an SHA3 hash, EVP_DigestFinal_ex is called in
hash._flush, bypassing safeguards in the JavaScript layer. Calling
hash.digest causes EVP_DigestFinal_ex to be called again, resulting
in a segmentation fault in the SHA3 implementation of OpenSSL.

A relatively easy solution is to cache the result of calling
EVP_DigestFinal_ex until the Hash object is garbage collected.

PR-URL: https://github.com/nodejs/node/pull/28251
Fixes: https://github.com/nodejs/node/issues/28245
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2019-06-18 18:42:48 +02:00

47 lines
1.9 KiB
JavaScript

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const crypto = require('crypto');
const stream = require('stream');
const s = new stream.PassThrough();
const h = crypto.createHash('sha3-512');
const expect = '36a38a2a35e698974d4e5791a3f05b05' +
'198235381e864f91a0e8cd6a26b677ec' +
'dcde8e2b069bd7355fabd68abd6fc801' +
'19659f25e92f8efc961ee3a7c815c758';
s.pipe(h).on('data', common.mustCall(function(c) {
assert.strictEqual(c, expect);
// Calling digest() after piping into a stream with SHA3 should not cause
// a segmentation fault, see https://github.com/nodejs/node/issues/28245.
assert.strictEqual(h.digest('hex'), expect);
})).setEncoding('hex');
s.end('aoeu');