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CVE-2024-27297— Nix Corruption of fixed-output derivations

Quick assessment

Affected
NixOS nix
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Nix是Nix开源的一个强大的包管理器。用于制作包。 Nix 2.20.3及之前版本存在安全漏洞，该漏洞源于Linux 上的固定输出派生可以通过抽象命名空间中的 Unix 域套接字将 Nix 存储中的文件描述符发送到主机上运行的另一个程序，允许对预期内容进行修改。

CVSS 6.3 · Medium EPSS 0.59% · P46
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I. Basic Information for CVE-2024-27297

Vulnerability Information
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Vulnerability Title
Nix Corruption of fixed-output derivations
Source: CVE Program / CVE List V5
Vulnerability Description
Nix is a package manager for Linux and other Unix systems. A fixed-output derivations on Linux can send file descriptors to files in the Nix store to another program running on the host (or another fixed-output derivation) via Unix domain sockets in the abstract namespace. This allows to modify the output of the derivation, after Nix has registered the path as "valid" and immutable in the Nix database. In particular, this allows the output of fixed-output derivations to be modified from their expected content. This issue has been addressed in versions 2.3.18 2.18.2 2.19.4 and 2.20.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
Nix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nix是Nix开源的一个强大的包管理器。用于制作包。 Nix 2.20.3及之前版本存在安全漏洞，该漏洞源于Linux 上的固定输出派生可以通过抽象命名空间中的 Unix 域套接字将 Nix 存储中的文件描述符发送到主机上运行的另一个程序，允许对预期内容进行修改。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NixOS nix >= 2.3.0, < 2.3.18 -

II. Public POCs for CVE-2024-27297

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III. Intelligence Information for CVE-2024-27297

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Patches & Fixes for CVE-2024-27297 (1)

Vendor Advisories for CVE-2024-27297 (1)

Other References for CVE-2024-27297 (1)

IV. Related Vulnerabilities

Same product: nix
Same vendor: NixOS
Same weakness: CWE-367

V. Comments for CVE-2024-27297

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