CVE-2007-4559 Patch

data/prepare_data_2d_h36m_sh.py

@@ -94,7 +94,26 @@ def process_subject(subject, file_list, output):
         print('Converting fine-tuned dataset from', args.fine_tuned)
         print('Extracting...')
         with tarfile.open(args.fine_tuned, 'r:gz') as archive:
-            archive.extractall('sh_ft')
+            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(archive, "sh_ft")
 
         print('Converting...')
         output = {}