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| author | Dmitry Stogov <dmitry@zend.com> | 2014-12-08 12:18:27 +0300 |
|---|---|---|
| committer | Dmitry Stogov <dmitry@zend.com> | 2014-12-08 12:18:27 +0300 |
| commit | dd791cd71742fdb9b87b7166537fbb25bd7cd8b9 (patch) | |
| tree | e480d48edaffb45ad5e1f6bad7da1162a3e4e896 | |
| parent | 0e985d372692e13b9b777b5eae5572e028f1d96a (diff) | |
| download | php-git-dd791cd71742fdb9b87b7166537fbb25bd7cd8b9.tar.gz | |
Fixed possible read after end of buffer and use after free.
| -rw-r--r-- | ext/mcrypt/mcrypt.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/ext/mcrypt/mcrypt.c b/ext/mcrypt/mcrypt.c index 55302c77f8..7f463cf5de 100644 --- a/ext/mcrypt/mcrypt.c +++ b/ext/mcrypt/mcrypt.c @@ -619,8 +619,11 @@ PHP_FUNCTION(mcrypt_generic_init) if (iv_len != iv_size) { php_error_docref(NULL TSRMLS_CC, E_WARNING, "Iv size incorrect; supplied length: %d, needed: %d", iv_len, iv_size); + if (iv_len > iv_size) { + iv_len = iv_size; + } } - memcpy(iv_s, iv, iv_size); + memcpy(iv_s, iv, iv_len); mcrypt_generic_deinit(pm->td); result = mcrypt_generic_init(pm->td, key_s, key_size, iv_s); @@ -641,8 +644,9 @@ PHP_FUNCTION(mcrypt_generic_init) php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown error"); break; } + } else { + pm->init = 1; } - pm->init = 1; RETVAL_LONG(result); efree(iv_s); |