Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk 15.x before 15.6.2 and 16.x before 16.0.1 allows remote attackers to crash Asterisk via a specially crafted DNS SRV or NAPTR response, because a buffer size is supposed to match an expanded length but actually matches a compressed length.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 1 product from digium organizations running these solutions should prioritize assessment and patching.
First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2018-11-14T20:29:00.587
2024-11-21T03:57:39.890
Modified
CVSSv3.0: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | digium | asterisk | 15.0.0 | Yes |
| Application | digium | asterisk | 15.0.0 | Yes |
| Application | digium | asterisk | 15.0.0 | Yes |
| Application | digium | asterisk | 15.1.0 | Yes |
| Application | digium | asterisk | 15.1.0 | Yes |
| Application | digium | asterisk | 15.1.0 | Yes |
| Application | digium | asterisk | 15.1.2 | Yes |
| Application | digium | asterisk | 15.1.3 | Yes |
| Application | digium | asterisk | 15.1.4 | Yes |
| Application | digium | asterisk | 15.1.5 | Yes |
| Application | digium | asterisk | 15.2.0 | Yes |
| Application | digium | asterisk | 15.2.0 | Yes |
| Application | digium | asterisk | 15.2.1 | Yes |
| Application | digium | asterisk | 15.2.2 | Yes |
| Application | digium | asterisk | 15.3.0 | Yes |
| Application | digium | asterisk | 15.3.0 | Yes |
| Application | digium | asterisk | 15.3.0 | Yes |
| Application | digium | asterisk | 15.4.0 | Yes |
| Application | digium | asterisk | 15.4.0 | Yes |
| Application | digium | asterisk | 15.4.0 | Yes |
| Application | digium | asterisk | 15.4.1 | Yes |
| Application | digium | asterisk | 15.5.0 | Yes |
| Application | digium | asterisk | 15.5.0 | Yes |
| Application | digium | asterisk | 15.6.0 | Yes |
| Application | digium | asterisk | 15.6.0 | Yes |
| Application | digium | asterisk | 15.6.1 | Yes |
| Application | digium | asterisk | 16.0.0 | Yes |
| Application | digium | asterisk | 16.0.0 | Yes |
| Application | digium | asterisk | 16.0.0 | Yes |
| Application | digium | asterisk | 16.0.1 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For digium's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.