GHSA-jwph-qp5h-f9wj

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    GHSA-jwph-qp5h-f9wj

    Published: 25 Aug 2021Last Modified: 8 Nov 2023

    Summary: Data races in bunch

    Details: An issue was discovered in the bunch crate through 2020-11-12 for Rust. Affected versions of this crate unconditionally implements `Send`/`Sync` for `Bunch<T>`. This allows users to insert `T: !Sync` to `Bunch<T>`. It is possible to create a data race to a `T: !Sync` by invoking the `Bunch::get()` API (which returns `&T`) from multiple threads. It is also possible to send `T: !Send` to other threads by inserting `T` inside `Bunch<T>` and sending `Bunch<T>` to another thread, allowing to create a data race by inserting types like `T = Rc<_>`. Such data races can lead to memory corruption.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-36450, https://github.com/krl/bunch/issues/1, https://github.com/krl/bunch, https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/bunch/RUSTSEC-2020-0130.md, https://rustsec.org/advisories/RUSTSEC-2020-0130.html

    Affected packages

    Package

    Name: bunch

    Purl: pkg:cargo/bunch

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -None

    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
    GHSA-jwph-qp5h-f9wj | CVE-DB