GHSA-62jx-8vmh-4mcw

Links in archive can create arbitrary directories

Source: GitHub Advisory Database (reviewed) High CVE-2021-38511

Packages

Ecosystem	Package	Affected	Fixed in
crates.io	tar	< 0.4.36	0.4.36

Details

As written in the advisory (Markdown source, shown as plain text).

When unpacking a tarball that contains a symlink the tar crate may create directories outside of the directory it's supposed to unpack into. The function errors when it's trying to create a file, but the folders are already created at this point.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2021-38511 advisory
https://github.com/alexcrichton/tar-rs/issues/238 web
https://github.com/alexcrichton/tar-rs/pull/259 web
https://github.com/alexcrichton/tar-rs package
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tar/RUSTSEC-2021-0080.md web
https://rustsec.org/advisories/RUSTSEC-2021-0080.html web