---
id: GHSA-jcr6-4frq-9gjj
aliases:
  - RUSTSEC-2023-0059
title: Users vulnerable to unaligned read of `*const *const c_char` pointer
summary: Users vulnerable to unaligned read of `*const *const c_char` pointer
severity: medium
vendor: users
product: users
ecosystem: rust
affected:
  - users <= 0.11.0
published: '2023-09-11'
updated: '2026-07-15'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-jcr6-4frq-9gjj'
references:
  - url: 'https://github.com/ogham/rust-users/issues/55'
  - url: 'https://github.com/ogham/rust-users'
  - url: 'https://rustsec.org/advisories/RUSTSEC-2023-0059.html'
tags:
  - osv
  - rust
ingestedAt: '2026-07-16T18:59:42.791Z'
---

## Overview

Affected versions dereference a potentially unaligned pointer. The pointer is commonly unaligned in practice, resulting in undefined behavior.

In some build modes, this is observable as a panic followed by abort. In other build modes the UB may manifest in some other way, including the possibility of working correctly in some architectures.

The crate is not currently maintained, so a patched version is not available.

## Recommended alternatives
- [`uzers`](https://crates.io/crates/uzers) (an actively maintained fork of the `users` crate)
- [`sysinfo`](https://crates.io/crates/sysinfo)


## Affected packages

- `users <= 0.11.0`

## Remediation

Refer to the advisory for the patched release.