homepage

The following simple change should be enough for this issue, but I would 
consider implementing the overflow check in the PyMem_RESIZE and PyMem_NEW macros and de-deprecate their use.
===================================================================
--- Objects/unicodeobject.c (revision 62237)
+++ Objects/unicodeobject.c (working copy)
@@ -261,8 +261,8 @@
 it contains). */
 
 oldstr = unicode->str;
- unicode->str = PyObject_REALLOC(unicode->str,
- sizeof(Py_UNICODE) * (length + 1));
+ unicode->str = SIZE_MAX/sizeof(Py_UNICODE) - 1 < length ? NULL :
+ PyObject_REALLOC(unicode->str, sizeof(Py_UNICODE) * (length + 
1));
 if (!unicode->str) {
 unicode->str = (Py_UNICODE *)oldstr;
 PyErr_NoMemory();