RUSTSEC-2021-0078

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Source

https://rustsec.org/advisories/RUSTSEC-2021-0078

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2021-0078.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2021-0078

Aliases

Published

2021-07-07T12:00:00Z

Modified

2023-11-08T04:05:57.978700Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator

Summary

Lenient `hyper` header parsing of `Content-Length` could allow request smuggling

Details

hyper's HTTP header parser accepted, according to RFC 7230, illegal contents inside Content-Length headers. Due to this, upstream HTTP proxies that ignore the header may still forward them along if it chooses to ignore the error.

To be vulnerable, hyper must be used as an HTTP/1 server and using an HTTP proxy upstream that ignores the header's contents but still forwards it. Due to all the factors that must line up, an attack exploiting this vulnerability is unlikely.

References

Affected packages

crates.io / hyper

Package

Name: hyper; View open source insights on deps.dev
Purl: pkg:cargo/hyper

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

0.14.10

Ecosystem specific

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

Database specific

{
    "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
    "informational": null,
    "categories": []
}