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authorAnatol Belski <ab@php.net>2017-10-24 14:05:18 +0200
committerJoe Watkins <krakjoe@php.net>2017-10-24 16:37:56 +0100
commitedb6adef362ddd878f92a60017e05229579ad37c (patch)
treeeec3b00dff9e3b97d639ba77b39e6d80b271dfd1
parent5c0455bf2c8cd3c25401407f158e820aa3b239e1 (diff)
downloadphp-git-edb6adef362ddd878f92a60017e05229579ad37c.tar.gz
Merge branch 'PHP-7.0' into PHP-7.1
* PHP-7.0: Fixed bug #72535 arcfour encryption stream filter crashes php
-rw-r--r--ext/mcrypt/mcrypt_filter.c2
-rw-r--r--ext/mcrypt/tests/bug72535.phpt23
2 files changed, 24 insertions, 1 deletions
diff --git a/ext/mcrypt/mcrypt_filter.c b/ext/mcrypt/mcrypt_filter.c
index 9bd8c2a414..fa15234954 100644
--- a/ext/mcrypt/mcrypt_filter.c
+++ b/ext/mcrypt/mcrypt_filter.c
@@ -89,7 +89,7 @@ static php_stream_filter_status_t php_mcrypt_filter(
php_stream_bucket_delref(bucket);
} else {
/* Stream cipher */
- php_stream_bucket_make_writeable(bucket);
+ bucket = php_stream_bucket_make_writeable(bucket);
if (data->encrypt) {
mcrypt_generic(data->module, bucket->buf, (int)bucket->buflen);
} else {
diff --git a/ext/mcrypt/tests/bug72535.phpt b/ext/mcrypt/tests/bug72535.phpt
new file mode 100644
index 0000000000..9e6d8333f9
--- /dev/null
+++ b/ext/mcrypt/tests/bug72535.phpt
@@ -0,0 +1,23 @@
+--TEST--
+Bug #72535 arcfour encryption stream filter crashes php
+--SKIPIF--
+<?php if (!extension_loaded("mcrypt")) print "skip"; ?>
+--FILE--
+<?php
+$passphrase = 'My secret';
+$plaintext = 'Secret secret secret data';
+
+$iv = substr(md5('iv' . $passphrase, true), 0, 8);
+$key = substr(md5('pass1' . $passphrase, true) .
+ md5('pass2' . $passphrase, true), 0, 24);
+$opts = array('iv' => $iv, 'key' => $key, 'mode' => 'stream');
+
+$expected = substr($plaintext . $plaintext, 0, 48);
+
+$fp = fopen('php://memory', 'wb+');
+stream_filter_append($fp, 'mcrypt.arcfour', STREAM_FILTER_WRITE, $opts);
+fwrite($fp, $plaintext);
+?>
+==NOCRASH==
+--EXPECT--
+==NOCRASH==