CVE-2025-24294
Apache Resolv DNS Denial of Service Vulnerability
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.
INFO
Published Date :
July 12, 2025, 4:15 a.m.
Last Modified :
July 12, 2025, 4:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
Public PoC/Exploit Available at Github
CVE-2025-24294 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2025-24294
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-24294.
| URL | Resource |
|---|---|
| https://www.ruby-lang.org/en/news/2025/07/08/dos-resolv-cve-2025-24294/ |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
💎 The Missing Cheatsheet for Ruby
ruby cheatsheet awesome basic programming lambdas loop range hash yield gem ruby-gem ruby-lang ruby-articles ruby-scripts ruby-on-rails
Ruby Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-24294 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-24294 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jul. 12, 2025
Action Type Old Value New Value Added 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. Added Reference https://www.ruby-lang.org/en/news/2025/07/08/dos-resolv-cve-2025-24294/
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-24294 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-24294
weaknesses.