GHSA-pqpw-89w5-82v5 – simd-json-derive

Package

Manager: cargo
Name: simd-json-derive
Vulnerable Version: >=0 <0.12.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:R

CVSS v4.0: 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

EPSS: N/A pctlN/A

Details

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

Metadata

Created: 2024-11-12T20:53:54Z
Modified: 2024-11-12T20:53:55Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/11/GHSA-pqpw-89w5-82v5/GHSA-pqpw-89w5-82v5.json
CWE IDs: []
Alternative ID: N/A
Finding: F138
Auto approve: 1