# CVE-2024-38531: nix: Nix is a package manager for Linux and other Unix systems that makes package management reliable and reproducible

CVE-2024-38531 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2024-38531, released June 28, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-38531
- Priority: Routine
- CVSS: 3.6 (low)
- EPSS: 0.0014
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 28, 2024

## Description

Nix is a package manager for Linux and other Unix systems that makes package management reliable and reproducible. A build process has access to and can change the permissions of the build directory. After creating a setuid binary in a globally accessible location, a malicious local user can assume the permissions of a Nix daemon worker and hijack all future builds. This issue was patched in version(s) 2.23.1, 2.22.2, 2.21.3, 2.20.7, 2.19.5 and 2.18.4.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | nix Debian 13.5 (trixie) | 2.23.3+dfsg-1 | [DEBIAN-CVE-2024-38531](https://patchblox.com/security/data/fix/linux/debian-cve-2024-38531.md) | Jun 28, 2024 |
| Linux | nix Debian 14 | 2.23.3+dfsg-1 | [DEBIAN-CVE-2024-38531](https://patchblox.com/security/data/fix/linux/debian-cve-2024-38531.md) | Jun 28, 2024 |
| Linux | nix-bin Ubuntu 22.04.1 LTS (jammy) | 2.6.0+dfsg-3ubuntu0.1~esm1 | [nix-bin 2.6.0+dfsg-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-nix-bin-2.6.0-dfsg-3ubuntu0.1-esm1.md) | Sep 26, 2024 |
| Linux | nix-bin Ubuntu 24.04.5 LTS (noble) | 2.18.1+dfsg-1ubuntu5+esm2 | [nix-bin 2.18.1+dfsg-1ubuntu5+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-nix-bin-2.18.1-dfsg-1ubuntu5-esm2.md) | Sep 26, 2024 |
| Linux | nix-setup-systemd Ubuntu 22.04.1 LTS (jammy) | 2.6.0+dfsg-3ubuntu0.1~esm1 | [nix-setup-systemd 2.6.0+dfsg-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-nix-setup-systemd-2.6.0-dfsg-3ubuntu0.1-esm1.md) | Sep 26, 2024 |
| Linux | nix-setup-systemd Ubuntu 24.04.5 LTS (noble) | 2.18.1+dfsg-1ubuntu5+esm2 | [nix-setup-systemd 2.18.1+dfsg-1ubuntu5+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-nix-setup-systemd-2.18.1-dfsg-1ubuntu5-esm2.md) | Sep 26, 2024 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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