CVE-2007-4559 Patch

models/image_classification/mobilenet_v2_1.0_224/tflite_int8/recreate_model/corpus.py

@@ -54,7 +54,26 @@ def extract_zip_file(self, tar_file_path, target_directory):
 
             print('Extracting {}...'.format(tar_file_path))
             with tarfile.open(tar_file_path) as tar:
-                tar.extractall(target_directory)
+                def is_within_directory(directory, target):
+
+                    abs_directory = os.path.abspath(directory)
+                    abs_target = os.path.abspath(target)
+
+                    prefix = os.path.commonprefix([abs_directory, abs_target])
+
+                    return prefix == abs_directory
+
+                def safe_extract(tar, path=".", members=None, *, numeric_owner=False):
+
+                    for member in tar.getmembers():
+                        member_path = os.path.join(path, member.name)
+                        if not is_within_directory(path, member_path):
+                            raise Exception("Attempted Path Traversal in Tar File")
+
+                    tar.extractall(path, members, numeric_owner=numeric_owner) 
+
+
+                safe_extract(tar, target_directory)
 
     def extract_dataset(self, zip_file, out_directory):
         zip_path = os.path.join(self.data_directory, zip_file)

models/speech_recognition/tiny_wav2letter/tflite_int8/recreate_code/corpus.py

@@ -109,7 +109,26 @@ def _extract_from_to(tar_file_name, source, target_directory):
             for member in source_members:
                 # Extract without prefix
                 member.name = member.name.replace(SpeechCorpusProvider.TAR_ROOT, '')
-            tar.extractall(target_directory, source_members)
+            def is_within_directory(directory, target):
+
+                abs_directory = os.path.abspath(directory)
+                abs_target = os.path.abspath(target)
+
+                prefix = os.path.commonprefix([abs_directory, abs_target])
+
+                return prefix == abs_directory
+
+            def safe_extract(tar, path=".", members=None, *, numeric_owner=False):
+
+                for member in tar.getmembers():
+                    member_path = os.path.join(path, member.name)
+                    if not is_within_directory(path, member_path):
+                        raise Exception("Attempted Path Traversal in Tar File")
+
+                tar.extractall(path, members, numeric_owner=numeric_owner) 
+
+
+            safe_extract(tar, target_directory, source_members)
 
     def _is_ready(self):
         """

models/speech_recognition/tiny_wav2letter/tflite_pruned_int8/recreate_code/corpus.py

@@ -109,7 +109,26 @@ def _extract_from_to(tar_file_name, source, target_directory):
             for member in source_members:
                 # Extract without prefix
                 member.name = member.name.replace(SpeechCorpusProvider.TAR_ROOT, '')
-            tar.extractall(target_directory, source_members)
+            def is_within_directory(directory, target):
+
+                abs_directory = os.path.abspath(directory)
+                abs_target = os.path.abspath(target)
+
+                prefix = os.path.commonprefix([abs_directory, abs_target])
+
+                return prefix == abs_directory
+
+            def safe_extract(tar, path=".", members=None, *, numeric_owner=False):
+
+                for member in tar.getmembers():
+                    member_path = os.path.join(path, member.name)
+                    if not is_within_directory(path, member_path):
+                        raise Exception("Attempted Path Traversal in Tar File")
+
+                tar.extractall(path, members, numeric_owner=numeric_owner) 
+
+
+            safe_extract(tar, target_directory, source_members)
 
     def _is_ready(self):
         """