RUSTSEC-2021-0020

    Dashboard / Vulnerabilities / RUSTSEC-2021-0020

    RUSTSEC-2021-0020

    Published: 5 Feb 2021Last Modified: 8 Nov 2023

    Summary: Multiple Transfer-Encoding headers misinterprets request payload

    Details: hyper's HTTP server code had a flaw that incorrectly understands some requests with multiple transfer-encoding headers to have a chunked payload, when it should have been rejected as illegal. This combined with an upstream HTTP proxy that understands the request payload boundary differently can result in "request smuggling" or "desync attacks".

    References: https://crates.io/crates/hyper, https://rustsec.org/advisories/RUSTSEC-2021-0020.html, https://github.com/hyperium/hyper/security/advisories/GHSA-6hfq-h8hq-87mf

    Affected packages

    Package

    Name: hyper

    Purl: pkg:cargo/hyper

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.12.0
    Fixed -0.12.36

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RUSTSEC-2021-0020 | CVE-DB