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CVE-2007-4559 Patch #5

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CVE-2007-4559 Patch #5

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42 changes: 40 additions & 2 deletions geotorch/utility/_download_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -32,12 +32,50 @@ def _extract_archive(from_path, to_path) -> None:
if _is_tar(from_path):
print("Archive extraction started...")
with tarfile.open(from_path, 'r') as tar:
tar.extractall(path=to_path)
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, path=to_path)
print("Archive extraction finished")
elif _is_targz(from_path):
print("Archive extraction started...")
with tarfile.open(from_path, 'r:gz') as tar:
tar.extractall(path=to_path)
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, path=to_path)
print("Archive extraction finished")
elif _is_gzip(from_path):
print("Archive extraction started...")
Expand Down