high7.5
CVE-2021-38511
Links in archive can create arbitrary directories
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rust | tar | < 0.4.36 | 0.4.36 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Tar Project | Tar | before 0.4.36 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tar/RUSTSEC-2021-0080.md
- https://rustsec.org/advisories/RUSTSEC-2021-0080.html
- https://github.com/advisories/GHSA-62jx-8vmh-4mcw
- https://nvd.nist.gov/vuln/detail/CVE-2021-38511
- https://github.com/alexcrichton/tar-rs/issues/238
- https://github.com/alexcrichton/tar-rs/pull/259