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- Fixed bug #52240 (hash_copy() does not copy the HMAC key, causes wrong results and PHP crashes)

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This commit is contained in:
Felipe Pena 2010-07-03 13:06:14 +00:00
parent e46fee1d1a
commit 0891e86ed8
3 changed files with 25 additions and 3 deletions
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3
NEWS
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@ -1,7 +1,8 @@
PHP NEWS
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
?? Jul 2010, PHP 5.3.3 RC3
- Fixed bug #52240 (hash_copy() does not copy the HMAC key, causes wrong
results and PHP crashes). (Felipe)
- Fixed bug #52238 (Crash when an Exception occured in iterator_to_array).
(Johannes)

6
ext/hash/hash.c
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@ -556,8 +556,10 @@ PHP_FUNCTION(hash_copy)
copy_hash->ops = hash->ops;
copy_hash->context = context;
copy_hash->options = hash->options;
copy_hash->key = hash->key;
copy_hash->key = ecalloc(1, hash->ops->block_size);
if (hash->key) {
memcpy(copy_hash->key, hash->key, hash->ops->block_size);
}
ZEND_REGISTER_RESOURCE(return_value, copy_hash, php_hash_le_hash);
}
/* }}} */

19
ext/hash/tests/bug52240.phpt Normal file
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@ -0,0 +1,19 @@
--TEST--
Bug #52240 (hash_copy() does not copy the HMAC key, causes wrong results and PHP crashes)
--SKIPIF--
<?php extension_loaded('hash') or die('skip'); ?>
--FILE--
<?php
$h = hash_init('crc32b', HASH_HMAC, '123456' );
$h2 = hash_copy($h);
var_dump(hash_final($h));
$h3 = hash_copy($h2);
var_dump(hash_final($h2));
var_dump(hash_final($h3));
?>
--EXPECT--
string(8) "278af264"
string(8) "278af264"
string(8) "278af264"