RUSTSEC-2021-0122

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Source

https://rustsec.org/advisories/RUSTSEC-2021-0122

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2021-0122.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2021-0122

Aliases

GHSA-3jch-9qgp-4844

Published

2021-10-31T12:00:00Z

Modified

2023-11-08T04:14:40.953991Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

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" 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.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / flatbuffers

Package

Name: flatbuffers; View open source insights on deps.dev
Purl: pkg:cargo/flatbuffers

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

22.9.29

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "os": [],
        "functions": [],
        "arch": []
    }
}

Database specific

{
    "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "informational": null,
    "categories": []
}