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Fix bug #67730 - Null byte injection possible with imagexxx functions

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This commit is contained in:
Stanislav Malyshev
2014-08-18 22:49:10 -07:00
parent 529da0f74c
commit 706aefb781
2 changed files with 7 additions and 0 deletions
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2
NEWS
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@@ -16,6 +16,8 @@ PHP NEWS
- GD:
. Fixed bug #66901 (php-gd 'c_color' NULL pointer dereference).
(CVE-2014-2497) (Remi)
. Fixed bug #67730 (Null byte injection possible with imagexxx functions).
(CVE-2014-5120) (Ryan Mauger)
- Milter:
. Fixed bug #67715 (php-milter does not build and crashes randomly). (Mike)

5
ext/gd/gd_ctx.c
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@@ -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;