Nix Package Manager Vulnerability: Hijacking Future Builds
CVE-2024-38531

3.6LOW

Key Information:

Vendor

Nixos

Status
Nix
Vendor
CVE Published:
28 June 2024

What is CVE-2024-38531?

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.

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Affected Version(s)

nix >= 2.23.0, < 2.23.1 < 2.23.0, 2.23.1

nix >= 2.22.0, < 2.22.2 < 2.22.0, 2.22.2

nix >= 2.21.0, < 2.21.3 < 2.21.0, 2.21.3

References

https://github.com/NixOS/nix/security/advisories/GHSA-q82...
x_refsource_CONFIRM
https://github.com/NixOS/nix/pull/10501
x_refsource_MISC

CVSS V3.1

Score:
3.6
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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