RUSTSEC-2018-0006

    Dashboard / Vulnerabilities / RUSTSEC-2018-0006

    RUSTSEC-2018-0006

    Published: 17 Sept 2018Last Modified: 8 Nov 2023

    Summary: Uncontrolled recursion leads to abort in deserialization

    Details: Affected versions of this crate did not prevent deep recursion while deserializing data structures. This allows an attacker to make a YAML file with deeply nested structures that causes an abort while deserializing it. The flaw was corrected by checking the recursion depth. Note: `clap 2.33` is not affected by this because it uses `yaml-rust` in a way that doesn't trigger the vulnerability. More specifically: 1. The input to the YAML parser is always trusted - is included at compile time via `include_str!`. 2. The nesting level is never deep enough to trigger the overflow in practice (at most 5).

    References: https://crates.io/crates/yaml-rust, https://rustsec.org/advisories/RUSTSEC-2018-0006.html, https://github.com/chyh1990/yaml-rust/pull/109

    Affected packages

    Package

    Name: yaml-rust

    Purl: pkg:cargo/yaml-rust

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.0.0-0
    Fixed -0.4.1

    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