🛡️ CVE-2017-18869 — chownr

🟢 CVSS 2.0 — Low ✅ No Known Exploit CWE-367 OSV
2.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Time-of-check Time-of-use (TOCTOU) Race Condition in chownr

A TOCTOU issue in the chownr package before 1.1.0 for Node.js 10.10 could allow a local attacker to trick it into descending into unintended directories via symlink attacks.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.

Weakness class

CVE-2017-18869 is classified as CWE-367: Time-of-check Time-of-use Race Condition. The state checked and the state acted upon can differ, because it may change between the two steps.

Affected software

CVE-2017-18869 is recorded against 1 package.

  • chownr

Timeline and source

Published on 10 February 2022 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
bugs.debian.org (Web)
bugzilla.redhat.com (Web)
snyk.io (Web)

Details

Severity LOW
CVSS Score 2.0
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE CWE-367
Public Exploit ✅ No
Source OSV
Published 2022-02-10
Updated 2026-08-12
Modified 2023-11-08
Fix URL N/A

Affected Packages

Software From version Fixed in
chownr — —

Similar Threats

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