RUSTSEC-2021-0122

    Dashboard / Vulnerabilities / RUSTSEC-2021-0122

    RUSTSEC-2021-0122

    Published: 31 Oct 2021Last Modified: 8 Nov 2023

    Summary: Generated code can read and write out of bounds in safe code

    Details: Code generated by flatbuffers' compiler is `unsafe` but not marked as such. See https://github.com/google/flatbuffers/issues/6627 for details. For example, if generated code is used to decode malformed or untrusted input, undefined behavior (and thus security vulnerabilities) is possible even without the use of the `unsafe` keyword, [violating the the meaning of "safe"](https://doc.rust-lang.org/std/keyword.unsafe.html#the-different-meanings-of-unsafe) code; All users that use generated code by `flatbuffers` compiler are recommended to: 1. not expose flatbuffer generated code as part of their public APIs 2. audit their code and look for any usage of `follow`, `push`, or any method that uses them (e.g. `self_follow`). 3. Carefully go through the crates' documentation to understand which "safe" APIs are not intended to be used.

    References: https://crates.io/crates/flatbuffers, https://rustsec.org/advisories/RUSTSEC-2021-0122.html, https://github.com/google/flatbuffers/issues/6627

    Affected packages

    Package

    Name: flatbuffers

    Purl: pkg:cargo/flatbuffers

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.0.0-0
    Fixed -22.9.29

    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
    RUSTSEC-2021-0122 | CVE-DB