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CVE-2007-4559 Patch #1

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Original file line number Diff line number Diff line change
Expand Up @@ -189,7 +189,26 @@ def download_and_install(self, version="latest", os_name=None, bitness=None, sho
logger.debug("Created directory: {0}".format(extract_dir))
if filename.lower().endswith(".tar.gz"):
with tarfile.open(os.path.join(self.get_download_path(version), filename), mode="r:*") as tar:
tar.extractall(extract_dir)
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, extract_dir)
logger.debug("Extracted files: {0}".format(", ".join(tar.getnames())))
elif filename.lower().endswith(".zip"):
with zipfile.ZipFile(os.path.join(self.get_download_path(version), filename), mode="r") as driver_zipfile:
Expand Down