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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| HackerOne | private_address_check ruby gem | 0.5.0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | private_address_check | < 0.5.0 | 0.5.0 | GHSA-2xvj-j3qh-x8c3 |