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CVE-2007-4559 Patch #5

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CVE-2007-4559 Patch #5

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21 changes: 20 additions & 1 deletion ingredients/seqlab_mod.py
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Original file line number Diff line number Diff line change
Expand Up @@ -622,7 +622,26 @@ def load_artifacts(self, model) -> None:
with tarfile.open(self.artifacts_path, 'r:gz') as f:
members = [member for member in f.getmembers()
if member.name in artifact_names]
f.extractall(tmpdirname, members=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(f, tmpdirname, members=members)

self.logger.info('Loading fields')
self.fields = torch.load(
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