[GHSA-r6q2-hw4h-h46w] Race Condition in node-tar Path Reservations via Unicode Ligature Collisions on macOS APFS

[urielcos]

Updates

• Affected products

Comments
isaacs/node-tar@b6162c7
I tested the version below, 6.0.5 by adding the test defined the in the fixing commit provided and it passed without any changes to the code.
Also, the poc fails even on the "fixed" version of tar. not sure what it does..

[github]

Hi there @isaacs! A community member has suggested an improvement to your security advisory. If approved, this change will affect the global advisory listed at github.com/advisories. It will not affect the version listed in your project repository.

This change will be reviewed by our Security Curation Team. If you have thoughts or feedback, please share them in a comment here! If this PR has already been closed, you can start a new community contribution for this advisory

[JonathanLEvans]

Hi @urielcos,

Thank you for your interest in improving this advisory. It looks like path-reservations.js was refactored in 7.0.0, which is likely why the test fails. However, the vulnerable code appears to be present in earlier version, just in a different location.