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| author | Stanislav Malyshev <stas@php.net> | 2014-08-18 22:49:10 -0700 |
|---|---|---|
| committer | Stanislav Malyshev <stas@php.net> | 2014-08-18 22:49:10 -0700 |
| commit | 706aefb78112a44d4932d4c9430c6a898696f51f (patch) | |
| tree | 6fc760a5341fbc6814009a6043b5038d53675887 /ext | |
| parent | 529da0f74c1a230d0656799efc73a387392dbc10 (diff) | |
| download | php-git-706aefb78112a44d4932d4c9430c6a898696f51f.tar.gz | |
Fix bug #67730 - Null byte injection possible with imagexxx functions
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/gd/gd_ctx.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ext/gd/gd_ctx.c b/ext/gd/gd_ctx.c index bff691fad2..eafbab5896 100644 --- a/ext/gd/gd_ctx.c +++ b/ext/gd/gd_ctx.c @@ -124,6 +124,11 @@ static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type, RETURN_FALSE; } } else if (Z_TYPE_P(to_zval) == IS_STRING) { + if (CHECK_ZVAL_NULL_PATH(to_zval)) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid 2nd parameter, filename must not contain null bytes"); + RETURN_FALSE; + } + stream = php_stream_open_wrapper(Z_STRVAL_P(to_zval), "wb", REPORT_ERRORS|IGNORE_PATH|IGNORE_URL_WIN, NULL); if (stream == NULL) { RETURN_FALSE; |