CVE-2018-3759 — LOW (3.7) — White Hats Nepal

Q: How severe is CVE-2018-3759?

CVE-2018-3759 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2018-3759?

Check the references section above for vendor advisories and patch information. Affected products include: Private Address Check Project Private Address Check.

Vulnerability 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.

CVSS Score

3.7

LOW

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Private Address Check Project	Private Address Check	< 0.5.0

Related Weaknesses (CWE)

CWE-362

References

https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7PatchThird Party Advisory
https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7PatchThird Party Advisory

FAQ

What is CVE-2018-3759?

CVE-2018-3759 is a vulnerability with a CVSS score of 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. DNS entries with a TTL of 0 can t...

How severe is CVE-2018-3759?

CVE-2018-3759 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-3759?

Check the references section above for vendor advisories and patch information. Affected products include: Private Address Check Project Private Address Check.