CVSS 3.0
3.7 lowCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:NCVE-2018-3759
Low (3.7) in private address check project private address check. EPSS 0.7% chance of exploitation in the next 30 days. Fixed in private_address_check 0.5.0.
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.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
- CWE
- CWE-362
- Published
- Modified
- Record from
- the NVD, synced
Affected
- private_address_check_project:private_address_check
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-2xvj-j3qh-x8c3 | RubyGems | private_address_check | <0.5.0 | 0.5.0 |