CVEvulnerability
CVE-2025-24294
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2025-07-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-400
Description
The attack vector is a potential Denial of Service (DoS). The vulnerability is caused by an insufficient check on the length of a decompressed domain name within a DNS packet.
An attacker can craft a malicious DNS packet containing a highly compressed domain name. When the resolv library parses such a packet, the name decompression process consumes a large amount of CPU resources, as the library does not limit the resulting length of the name.
This resource consumption can cause the application thread to become unresponsive, resulting in a Denial of Service condition.
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- https://www.ruby-lang.org/en/news/2025/07/08/dos-resolv-cve-2025-24294/ www.ruby-lang.org
- https://www.ruby-lang.org/en/news/2025/07/08/dos-resolv-cve-2025-24294/ www.ruby-lang.org