CVE-2025-24294 – Apache Resolv DNS Denial of Service Vulnerability

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/
Share the Post:

Related Posts