diff --git a/lib/controller/checks.py b/lib/controller/checks.py
index f18b9fbb0..c5bd8436f 100644
--- a/lib/controller/checks.py
+++ b/lib/controller/checks.py
@@ -554,7 +554,8 @@ def checkSqlInjection(place, parameter, value):
                             trueRawResponse = "%s%s" % (trueHeaders, truePage)
 
                             if conf.lengths:
-                                kb.trueLength = len(truePage)
+                                # under NULL connection the body is absent, so take the length HEAD/Range reported
+                                kb.trueLength = threadData.lastComparisonPageLength if kb.nullConnection else len(truePage)
                                 trueResult = True
 
                             if trueResult and not (truePage == falsePage and not any((kb.nullConnection, conf.code))):
diff --git a/lib/core/settings.py b/lib/core/settings.py
index e16bd71ce..863d0ebaa 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -20,7 +20,7 @@ from lib.core.enums import OS
 from thirdparty import six
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.10.7.210"
+VERSION = "1.10.7.211"
 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/core/threads.py b/lib/core/threads.py
index 47e8e10ab..a16be6042 100644
--- a/lib/core/threads.py
+++ b/lib/core/threads.py
@@ -51,6 +51,7 @@ class _ThreadData(threading.local):
         self.lastComparisonHeaders = None
         self.lastComparisonCode = None
         self.lastComparisonRatio = None
+        self.lastComparisonPageLength = None
         self.lastPageTemplateCleaned = None
         self.lastPageTemplateJsonMinimized = None
         self.lastPageTemplateStructural = None
diff --git a/lib/request/comparison.py b/lib/request/comparison.py
index 891338353..cb49bc179 100644
--- a/lib/request/comparison.py
+++ b/lib/request/comparison.py
@@ -85,6 +85,7 @@ def _comparison(page, headers, code, getRatioValue, pageLength):
         threadData.lastComparisonHeaders = listToStrValue(_ for _ in headers.headers if not _.startswith("%s:" % URI_HTTP_HEADER)) if headers else ""
         threadData.lastComparisonPage = page
         threadData.lastComparisonCode = code
+        threadData.lastComparisonPageLength = pageLength  # NULL connection carries the length here (no body)
 
     if page is None and pageLength is None:
         return None
@@ -114,9 +115,10 @@ def _comparison(page, headers, code, getRatioValue, pageLength):
     if conf.code:
         return conf.code == code
 
-    # Response content length to match when the query is True
+    # Response content length to match when the query is True (NULL connection supplies the length via
+    # pageLength with no body, so fall back to it rather than len(None)=0 which would stall the oracle)
     if conf.lengths:
-        return len(page or "") == kb.trueLength
+        return (pageLength if page is None else len(page)) == kb.trueLength
 
     seqMatcher = threadData.seqMatcher
     seqMatcher.set_seq1(kb.pageTemplate)