RUSTSEC-2025-0110

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Source

https://rustsec.org/advisories/RUSTSEC-2025-0110

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2025-0110.json

JSON Data

https://api.test.osv.dev/v1/vulns/RUSTSEC-2025-0110

Aliases

Published

2025-10-21T12:00:00Z

Modified

2025-10-25T11:44:30.398227Z

Severity

8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator

Summary

astral-tokio-tar Vulnerable to PAX Header Desynchronization

Details

Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsistent PAX/ustar header handling. When processing archives with PAX-extended headers containing size overrides, the parser incorrectly advances stream position based on ustar header size (often zero) instead of the PAX-specified size, causing it to interpret file content as legitimate tar headers.

This vulnerability was disclosed to multiple Rust tar parsers, all derived from the original async-tar fork of tar-rs.

For additional information see Edera's blog post.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / astral-tokio-tar

Package

Name: astral-tokio-tar; View open source insights on deps.dev
Purl: pkg:cargo/astral-tokio-tar

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

0.5.6

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "functions": [],
        "os": [],
        "arch": []
    }
}

Database specific

informational

null

cvss

"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"