CVE-2018-3759

Published: Jun 13, 2018Modified: Nov 21, 2024

3.7

Vector

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

Exploitability: 2.2 / Impact: 1.4

Source: NVD

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 (1)

Products: Private Address Check Project: Private Address Check

Private Address Check Project

1 product

Private Address Check

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Private Address Check Project Private Address Check	Before 0.5.0

Related CWEs

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (2)

https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147

Source: support@hackerone.com

PatchThird Party Advisory

https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

Timeline

No history available yet.