CVE-2025-24294 Affecting rubygem-mysql2-doc package, versions <0:0.5.5-1.module+el8.10.0+1679+61871737


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.06% (18th percentile)

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  • Snyk IDSNYK-ROCKY8-RUBYGEMMYSQL2DOC-14858807
  • published4 Jan 2026
  • disclosed12 Jul 2025

Introduced: 12 Jul 2025

CVE-2025-24294  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 rubygem-mysql2-doc to version 0:0.5.5-1.module+el8.10.0+1679+61871737 or higher.
This issue was patched in RLSA-2025:23062.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem-mysql2-doc package and not the rubygem-mysql2-doc package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1