GHSA-pqpw-89w5-82v5

Source

https://github.com/advisories/GHSA-pqpw-89w5-82v5

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/11/GHSA-pqpw-89w5-82v5/GHSA-pqpw-89w5-82v5.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-pqpw-89w5-82v5

Published

2024-11-12T20:53:54Z

Modified

2024-11-12T20:53:55Z

Severity

6.6 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U CVSS Calculator

Summary

`simd-json-derive` vulnerable to `MaybeUninit` misuse

Details

An invalid use of MaybeUninit::uninit().assume_init() in simd-json-derive's derive macro can cause undefined behavior. The original code used MaybeUninit to avoid initialisation of the struct and then set the fields using ptr::write. The undefined behavior triggered by this misuse of MaybeUninit can lead to invlaid memory access and panics in binaries compiled in release mode (aka simd-json-derive prior to version 0.12 has UB and optimizes into some nonsense)

The version 0.12.0 removes this section of code, avoiding the use of MaybeUninit alltogether.

Database specific

{
    "github_reviewed_at": "2024-11-12T20:53:54Z",
    "github_reviewed": true,
    "severity": "MODERATE",
    "nvd_published_at": null,
    "cwe_ids": []
}

References

Affected packages

crates.io / simd-json-derive

Package

Name: simd-json-derive; View open source insights on deps.dev
Purl: pkg:cargo/simd-json-derive

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.12.0