Strix
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CVE-2018-3759

UnknownEPSS 0.69%

Last modified

CVE-2018-3759 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.69%

48.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Private Address Check ProjectPrivate Address Check< 0.5.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-3759?
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.
How severe is CVE-2018-3759?
Severity scoring for CVE-2018-3759 is pending analysis. The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.
How do I fix CVE-2018-3759?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-3759?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST