GHSA-9frf-r7c7-j2vg

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    GHSA-9frf-r7c7-j2vg

    Published: 25 Aug 2021Last Modified: 8 Nov 2023

    Summary: Out of bounds write in stackvector

    Details: StackVec::extend used the lower and upper bounds from an Iterator's size_hint to determine how many items to push into the stack based vector. If the size_hint implementation returned a lower bound that was larger than the upper bound, StackVec would write out of bounds and overwrite memory on the stack. As mentioned by the size_hint documentation, size_hint is mainly for optimization and incorrect implementations should not lead to memory safety issues.

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-29939, https://github.com/Alexhuszagh/rust-stackvector/issues/2, https://github.com/Alexhuszagh/rust-stackvector, https://rustsec.org/advisories/RUSTSEC-2021-0048.html

    Affected packages

    Package

    Name: stackvector

    Purl: pkg:cargo/stackvector

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.0.9

    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-9frf-r7c7-j2vg | CVE-DB