diff --git a/data/txt/sha256sums.txt b/data/txt/sha256sums.txt
index 1046a7585..de62094c7 100644
--- a/data/txt/sha256sums.txt
+++ b/data/txt/sha256sums.txt
@@ -189,7 +189,7 @@ f5272cda54f7cdd07fb6154d5a1ed1f1141a2a4f39b6a85d3f325fd60ac8dc9a  lib/core/enums
 48797d6c34dd9bb8a53f7f3794c85f4288d82a9a1d6be7fcf317d388cb20d4b3  lib/core/replication.py
 3574639db4942d16a2dc0a2f04bb7c0913c40c3862b54d34c44075a760e0c194  lib/core/revision.py
 888daba83fd4a34e9503fe21f01fef4cc730e5cde871b1d40e15d4cbc847d56c  lib/core/session.py
-c76cfbf08641ce4646cbe39584aa306ba0e5376c05af629eb10cc42b06debab9  lib/core/settings.py
+5a846e74803981103797c260877d85be5cf9941ad1caca30dcc345fa6c68d13a  lib/core/settings.py
 cd5a66deee8963ba8e7e9af3dd36eb5e8127d4d68698811c29e789655f507f82  lib/core/shell.py
 bcb5d8090d5e3e0ef2a586ba09ba80eef0c6d51feb0f611ed25299fbb254f725  lib/core/subprocessng.py
 d35650179816193164a5f177102f18379dfbe6bb6d40fbb67b78d907b41c8038  lib/core/target.py
@@ -214,7 +214,7 @@ bc61bc944b81a7670884f82231033a6ac703324b34b071c9834886a92e249d0e  lib/request/ch
 2daf0ce19eacda64687f441c90ef8da51714c3e8947c993ba08fb4ecdc4f5287  lib/request/comparison.py
 626bb6f3316a906a4629c0feb8ecbbcf473fb59e5bc532603c35b6b8f63f1deb  lib/request/connect.py
 8e06682280fce062eef6174351bfebcb6040e19976acff9dc7b3699779783498  lib/request/direct.py
-9ef303e18311e204727dac71c0ed8b814ab6aa1185f2af0a9703b95e5b3ea6e8  lib/request/dns.py
+cf019248253a5d7edb7bc474aa020b9e8625d73008a463c56ba2b539d7f2d8ec  lib/request/dns.py
 f56fc33251bd6214e3a6316c8f843eb192b2996aa84bd4c3e98790fdcf6e8cf0  lib/request/httpshandler.py
 1966ca704961fb987ab757f0a4afddbf841d1a880631b701487c75cef63d60c3  lib/request/__init__.py
 aeeeb5f0148078e30d52208184042efc3618d3f2e840d7221897aae34315824e  lib/request/inject.py
diff --git a/lib/core/settings.py b/lib/core/settings.py
index f69a2b9d3..f890253e7 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -19,7 +19,7 @@ from lib.core.enums import OS
 from thirdparty import six
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.10.1.11"
+VERSION = "1.10.1.12"
 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)
diff --git a/lib/request/dns.py b/lib/request/dns.py
index 8c0ebd987..1be548882 100644
--- a/lib/request/dns.py
+++ b/lib/request/dns.py
@@ -89,17 +89,22 @@ class DNSServer(object):
 
     def _check_localhost(self):
         response = b""
+        s = None
 
         try:
             s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+            s.settimeout(1.0)
             s.connect(("", 53))
             s.send(binascii.unhexlify("6509012000010000000000010377777706676f6f676c6503636f6d00000100010000291000000000000000"))  # A www.google.com
             response = s.recv(512)
         except:
             pass
         finally:
-            if response and b"google" in response:
-                raise socket.error("another DNS service already running on '0.0.0.0:53'")
+            if s:
+                s.close()
+
+        if response and b"google" in response:
+            raise socket.error("another DNS service already running on '0.0.0.0:53'")
 
     def pop(self, prefix=None, suffix=None):
         """