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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2025-24294

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.

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Status
Published
Published
Updated
Assigning organization
hackerone

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Ruby resolv

Default version status: unaffected

  • 0.2 to ≤ 0.2.2affected
  • 0.3.0 to ≤ 0.3.0affected
  • 0.6 to ≤ 0.6.1affected

References