Vulnerability details
CVE-2025-24294
ruby resolv
CVSS 3.1
7.5High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| ruby | resolv | 0.2 ≤ v ≤ 0.2.2 | CVEProject cvelistV5 (CNA) |
| ruby | resolv | 0.3.0 ≤ v ≤ 0.3.0 | CVEProject cvelistV5 (CNA) |
| ruby | resolv | 0.6 ≤ v ≤ 0.6.1 | CVEProject cvelistV5 (CNA) |
References and advisories
1
Kolun on Telegram @kolunsec
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Details
- Published
- 2025-07-12
- Last updated
- 2025-07-16
- State
- Published
- Assigner (CNA)
- hackerone
Exploit prediction (EPSS)
0.65%
Probability of exploitation in 30 days
51.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-400Uncontrolled Resource Consumption