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CVE-2018-3759

3.7 · LOW

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.

Published Jun 13, 2018CWE-362EPSS 0.69%

Overview

CVE-2018-3759 is a low-severity vulnerability. It was published on June 13, 2018 and has a CVSS 3.0 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.0 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147GitHubgithub.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147

How CyberStrike helps

Frequently asked questions

What is CVE-2018-3759?

CVE-2018-3759 is a low-severity vulnerability. It was published on June 13, 2018 and has a CVSS 3.0 base score of 3.7 (LOW).

How severe is CVE-2018-3759?

This vulnerability has a CVSS 3.0 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-3759?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-3759?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-3759 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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