GHSA-m8h8-v6jh-c762

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    GHSA-m8h8-v6jh-c762

    Published: 25 Aug 2021Last Modified: 8 Nov 2023

    Summary: Incorrect buffer size in crossbeam-channel

    Details: The affected version of this crate's the bounded channel incorrectly assumes that Vec::from_iter has allocated capacity that same as the number of iterator elements. Vec::from_iter does not actually guarantee that and may allocate extra memory. The destructor of the bounded channel reconstructs Vec from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when Vec::from_iter has allocated different sizes with the number of iterator elements.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-35904, https://github.com/crossbeam-rs/crossbeam/pull/533, https://github.com/crossbeam-rs/crossbeam, https://rustsec.org/advisories/RUSTSEC-2020-0052.html

    Affected packages

    Package

    Name: crossbeam-channel

    Purl: pkg:cargo/crossbeam-channel

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.4.3
    Fixed -0.4.4

    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-m8h8-v6jh-c762 | CVE-DB