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lbryio / lbry-sdk

The LBRY SDK for building decentralized, censorship resistant, monetized, digital content apps.
https://lbry.com
MIT License
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CVE-2007-4559 Patch #3683

Closed TrellixVulnTeam closed 1 year ago

TrellixVulnTeam commented 1 year ago

Patching CVE-2007-4559

Hi, we are security researchers from the Advanced Research Center at Trellix. We have began a campaign to patch a widespread bug named CVE-2007-4559. CVE-2007-4559 is a 15 year old bug in the Python tarfile package. By using extract() or extractall() on a tarfile object without sanitizing input, a maliciously crafted .tar file could perform a directory path traversal attack. We found at least one unsantized extractall() in your codebase and are providing a patch for you via pull request. The patch essentially checks to see if all tarfile members will be extracted safely and throws an exception otherwise. We encourage you to use this patch or your own solution to secure against CVE-2007-4559. Further technical information about the vulnerability can be found in this blog.

If you have further questions you may contact us through this projects lead researcher Kasimir Schulz.

eukreign commented 1 year ago

The potentially compromised code referenced in this PR is not a security concern because this is only used in tests and for downloading a known tar.gz file that we created ourselves. Thanks for the PR though and for looking at our project.