Description
private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is a private address.
Published: 2018-06-13
Score: 3.7 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2018-0210 private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is a private address.
Github GHSA Github GHSA GHSA-2xvj-j3qh-x8c3 private_address_check contains race condition
History

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Subscriptions

Private Address Check Project Private Address Check
cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2024-09-16T20:26:38.707Z

Reserved: 2017-12-28T00:00:00.000Z

Link: CVE-2018-3759

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-06-13T15:29:00.267

Modified: 2026-06-17T01:57:46.987

Link: CVE-2018-3759

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-362

    Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')