pajoye Wed, 28 Apr 2010 14:10:01 +0000
Revision: http://svn.php.net/viewvc?view=revision&revision=298700
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Log:
- fix possible Dechunking Filter Buffer Overflow
Changed paths:
U php/php-src/branches/PHP_5_3/NEWS
U php/php-src/branches/PHP_5_3/ext/standard/filters.c
U php/php-src/trunk/ext/standard/filters.c
Modified: php/php-src/branches/PHP_5_3/NEWS
===================================================================
--- php/php-src/branches/PHP_5_3/NEWS 2010-04-28 12:29:13 UTC (rev 298699)
+++ php/php-src/branches/PHP_5_3/NEWS 2010-04-28 14:10:01 UTC (rev 298700)
@@ -21,6 +21,8 @@
- Fixed very rare memory leak in mysqlnd, when binding thousands of columns.
(Andrey)
+- Fixed a possible dechunking filter buffer overflow. Reported by Stefan Esser.
+ (Pierre)
- Fixed a possible arbitrary memory access inside sqlite extension. Reported
by Mateusz Kocielski. (Ilia)
- Fixed string format validation inside phar extension. Reported by Stefan
Modified: php/php-src/branches/PHP_5_3/ext/standard/filters.c
===================================================================
--- php/php-src/branches/PHP_5_3/ext/standard/filters.c 2010-04-28 12:29:13 UTC
(rev 298699)
+++ php/php-src/branches/PHP_5_3/ext/standard/filters.c 2010-04-28 14:10:01 UTC
(rev 298700)
@@ -1914,7 +1914,7 @@
typedef struct _php_chunked_filter_data {
php_chunked_filter_state state;
- int chunk_size;
+ size_t chunk_size;
int persistent;
} php_chunked_filter_data;
@@ -1991,7 +1991,7 @@
continue;
}
case CHUNK_BODY:
- if (end - p >= data->chunk_size) {
+ if ((size_t) (end - p) >= data->chunk_size) {
if (p != out) {
memmove(out, p,
data->chunk_size);
}
Modified: php/php-src/trunk/ext/standard/filters.c
===================================================================
--- php/php-src/trunk/ext/standard/filters.c 2010-04-28 12:29:13 UTC (rev
298699)
+++ php/php-src/trunk/ext/standard/filters.c 2010-04-28 14:10:01 UTC (rev
298700)
@@ -1914,7 +1914,7 @@
typedef struct _php_chunked_filter_data {
php_chunked_filter_state state;
- int chunk_size;
+ size_t chunk_size;
int persistent;
} php_chunked_filter_data;
@@ -1991,7 +1991,7 @@
continue;
}
case CHUNK_BODY:
- if (end - p >= data->chunk_size) {
+ if ((size_t) (end - p) >= data->chunk_size) {
if (p != out) {
memmove(out, p,
data->chunk_size);
}
--
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