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nano_arena

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. Critical, CVSS 9.8crates.ioPublished

    Use after free in nano_arena

    CVE-2021-28032 · GHSA-wp34-mqw5-jj85

    Affected
    • crates.io nano_arena < 0.5.2
    Fixed in
    0.5.2· Vendor fix available
    Issue
    Affected versions of this crate assumed that Borrow<Idx was guaranteed to return the same value on .borrow(). The borrowed index value was used to retrieve a mutable reference to a value. If the Borrow<Idx implementation returned a different index, the split arena would allow retrieving the index as a mutable reference creating two mutable references to the same element. This violates Rust's aliasing rules and allows for memory safety issues such as writing out of bounds and use-after-frees. The flaw was corrected in commit 6b83f9d by storing the .borrow() value in a temporary variable.

    Recommended action: Upgrade to 0.5.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →