diff --git a/lib/core/patch.py b/lib/core/patch.py
index b1c5773dd..ada695427 100644
--- a/lib/core/patch.py
+++ b/lib/core/patch.py
@@ -6,6 +6,7 @@ See the file 'LICENSE' for copying permission
 """
 
 import codecs
+import os
 import random
 
 import lib.controller.checks
@@ -76,6 +77,15 @@ def dirtyPatches():
     # to prevent too much "guessing" in case of binary data retrieval
     thirdparty.chardet.universaldetector.MINIMUM_THRESHOLD = 0.90
 
+    # https://github.com/sqlmapproject/sqlmap/issues/4314
+    try:
+        os.urandom(1)
+    except NotImplemented:
+        if six.PY3:
+            os.urandom = lambda size: bytes(random.randint(0, 255) for _ in range(size))
+        else:
+            os.urandom = lambda size: "".join(chr(random.randint(0, 255)) for _ in xrange(size))
+
 def resolveCrossReferences():
     """
     Place for cross-reference resolution
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 8b9a05cd4..d1a5d4dc4 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.4.8.11"
+VERSION = "1.4.8.12"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)