Asterisk Open Source 1.8.x, 11.x before 11.21.1, 12.x, and 13.x before 13.7.1 and Certified Asterisk 1.8.28, 11.6 before 11.6-cert12, and 13.1 before 13.1-cert3 allow remote authenticated users to cause a denial of service (uninitialized pointer dereference and crash) via a zero length error correcting redundancy packet for a UDPTL FAX packet that is lost.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 2 products from digium, from digium organizations running these solutions should prioritize assessment and patching.
First disclosed in 2016, 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.
2016-02-22T15:59:01.190
2025-04-12T10:46:40.837
Deferred
CVSSv3.0: 6.5 (MEDIUM)
AV:N/AC:L/Au:S/C:N/I:N/A:P
8.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.1 | Yes |
| Application | digium | asterisk | 1.8.1 | Yes |
| Application | digium | asterisk | 1.8.1.1 | Yes |
| Application | digium | asterisk | 1.8.1.2 | Yes |
| Application | digium | asterisk | 1.8.2 | Yes |
| Application | digium | asterisk | 1.8.2.1 | Yes |
| Application | digium | asterisk | 1.8.2.2 | Yes |
| Application | digium | asterisk | 1.8.2.3 | Yes |
| Application | digium | asterisk | 1.8.2.4 | Yes |
| Application | digium | asterisk | 1.8.3 | Yes |
| Application | digium | asterisk | 1.8.3 | Yes |
| Application | digium | asterisk | 1.8.3 | Yes |
| Application | digium | asterisk | 1.8.3 | Yes |
| Application | digium | asterisk | 1.8.3.1 | Yes |
| Application | digium | asterisk | 1.8.3.2 | Yes |
| Application | digium | asterisk | 1.8.3.3 | Yes |
| Application | digium | asterisk | 1.8.4 | Yes |
| Application | digium | asterisk | 1.8.4 | Yes |
| Application | digium | asterisk | 1.8.4 | Yes |
| Application | digium | asterisk | 1.8.4 | Yes |
| Application | digium | asterisk | 1.8.4.1 | Yes |
| Application | digium | asterisk | 1.8.4.2 | Yes |
| Application | digium | asterisk | 1.8.4.3 | Yes |
| Application | digium | asterisk | 1.8.4.4 | Yes |
| Application | digium | asterisk | 1.8.5 | Yes |
| Application | digium | asterisk | 1.8.5 | Yes |
| Application | digium | asterisk | 1.8.5.0 | Yes |
| Application | digium | asterisk | 1.8.6.0 | Yes |
| Application | digium | asterisk | 1.8.6.0 | Yes |
| Application | digium | asterisk | 1.8.6.0 | Yes |
| Application | digium | asterisk | 1.8.6.0 | Yes |
| Application | digium | asterisk | 1.8.7.0 | Yes |
| Application | digium | asterisk | 1.8.7.0 | Yes |
| Application | digium | asterisk | 1.8.7.0 | Yes |
| Application | digium | asterisk | 1.8.7.1 | Yes |
| Application | digium | asterisk | 1.8.8.0 | Yes |
| Application | digium | asterisk | 1.8.8.0 | Yes |
| Application | digium | asterisk | 1.8.8.0 | Yes |
| Application | digium | asterisk | 1.8.8.0 | Yes |
| Application | digium | asterisk | 1.8.8.0 | Yes |
| Application | digium | asterisk | 1.8.8.0 | Yes |
| Application | digium | asterisk | 1.8.8.0 | Yes |
| Application | digium | asterisk | 1.8.8.0 | Yes |
| Application | digium | asterisk | 1.8.8.1 | Yes |
| Application | digium | asterisk | 1.8.8.2 | Yes |
| Application | digium | asterisk | 1.8.9.0 | Yes |
| Application | digium | asterisk | 1.8.9.0 | Yes |
| Application | digium | asterisk | 1.8.9.0 | Yes |
| Application | digium | asterisk | 1.8.9.0 | Yes |
| Application | digium | asterisk | 1.8.9.0 | Yes |
| Application | digium | asterisk | 1.8.9.1 | Yes |
| Application | digium | asterisk | 1.8.9.2 | Yes |
| Application | digium | asterisk | 1.8.9.3 | Yes |
| Application | digium | asterisk | 1.8.10.0 | Yes |
| Application | digium | asterisk | 1.8.10.0 | Yes |
| Application | digium | asterisk | 1.8.10.0 | Yes |
| Application | digium | asterisk | 1.8.10.0 | Yes |
| Application | digium | asterisk | 1.8.10.0 | Yes |
| Application | digium | asterisk | 1.8.10.0 | Yes |
| Application | digium | asterisk | 1.8.10.1 | Yes |
| Application | digium | asterisk | 1.8.11.0 | Yes |
| Application | digium | asterisk | 1.8.11.0 | Yes |
| Application | digium | asterisk | 1.8.11.0 | Yes |
| Application | digium | asterisk | 1.8.11.0 | Yes |
| Application | digium | asterisk | 1.8.11.0 | Yes |
| Application | digium | asterisk | 1.8.11.1 | Yes |
| Application | digium | asterisk | 1.8.11.1 | Yes |
| Application | digium | asterisk | 1.8.11.1 | Yes |
| Application | digium | asterisk | 1.8.12 | Yes |
| Application | digium | asterisk | 1.8.12.0 | Yes |
| Application | digium | asterisk | 1.8.12.0 | Yes |
| Application | digium | asterisk | 1.8.12.0 | Yes |
| Application | digium | asterisk | 1.8.12.0 | Yes |
| Application | digium | asterisk | 1.8.12.0 | Yes |
| Application | digium | asterisk | 1.8.12.1 | Yes |
| Application | digium | asterisk | 1.8.12.2 | Yes |
| Application | digium | asterisk | 1.8.13.0 | Yes |
| Application | digium | asterisk | 1.8.13.0 | Yes |
| Application | digium | asterisk | 1.8.13.0 | Yes |
| Application | digium | asterisk | 1.8.13.1 | Yes |
| Application | digium | asterisk | 1.8.14.0 | Yes |
| Application | digium | asterisk | 1.8.14.0 | Yes |
| Application | digium | asterisk | 1.8.14.0 | Yes |
| Application | digium | asterisk | 1.8.14.0 | Yes |
| Application | digium | asterisk | 1.8.14.1 | Yes |
| Application | digium | asterisk | 1.8.14.1 | Yes |
| Application | digium | asterisk | 1.8.14.1 | Yes |
| Application | digium | asterisk | 1.8.15.0 | Yes |
| Application | digium | asterisk | 1.8.15.0 | Yes |
| Application | digium | asterisk | 1.8.15.0 | Yes |
| Application | digium | asterisk | 1.8.15.1 | Yes |
| Application | digium | asterisk | 1.8.16.0 | Yes |
| Application | digium | asterisk | 1.8.16.0 | Yes |
| Application | digium | asterisk | 1.8.16.0 | Yes |
| Application | digium | asterisk | 1.8.16.0 | Yes |
| Application | digium | asterisk | 1.8.17.0 | Yes |
| Application | digium | asterisk | 1.8.17.0 | Yes |
| Application | digium | asterisk | 1.8.17.0 | Yes |
| Application | digium | asterisk | 1.8.17.0 | Yes |
| Application | digium | asterisk | 1.8.17.0 | Yes |
| Application | digium | asterisk | 1.8.17.0 | Yes |
| Application | digium | asterisk | 1.8.18.0 | Yes |
| Application | digium | asterisk | 1.8.18.0 | Yes |
| Application | digium | asterisk | 1.8.18.0 | Yes |
| Application | digium | asterisk | 1.8.18.1 | Yes |
| Application | digium | asterisk | 1.8.19.0 | Yes |
| Application | digium | asterisk | 1.8.19.0 | Yes |
| Application | digium | asterisk | 1.8.19.0 | Yes |
| Application | digium | asterisk | 1.8.19.0 | Yes |
| Application | digium | asterisk | 1.8.19.1 | Yes |
| Application | digium | asterisk | 1.8.20.0 | Yes |
| Application | digium | asterisk | 1.8.20.0 | Yes |
| Application | digium | asterisk | 1.8.20.0 | Yes |
| Application | digium | asterisk | 1.8.20.0 | Yes |
| Application | digium | asterisk | 1.8.20.1 | Yes |
| Application | digium | asterisk | 1.8.20.1 | Yes |
| Application | digium | asterisk | 1.8.20.2 | Yes |
| Application | digium | asterisk | 1.8.20.2 | Yes |
| Application | digium | asterisk | 1.8.21.0 | Yes |
| Application | digium | asterisk | 1.8.21.0 | Yes |
| Application | digium | asterisk | 1.8.21.0 | Yes |
| Application | digium | asterisk | 1.8.22.0 | Yes |
| Application | digium | asterisk | 1.8.22.0 | Yes |
| Application | digium | asterisk | 1.8.22.0 | Yes |
| Application | digium | asterisk | 1.8.23.0 | Yes |
| Application | digium | asterisk | 1.8.23.0 | Yes |
| Application | digium | asterisk | 1.8.23.0 | Yes |
| Application | digium | asterisk | 1.8.23.0 | Yes |
| Application | digium | asterisk | 1.8.23.1 | Yes |
| Application | digium | asterisk | 1.8.24.0 | Yes |
| Application | digium | asterisk | 1.8.24.0 | Yes |
| Application | digium | asterisk | 1.8.24.0 | Yes |
| Application | digium | asterisk | 1.8.24.1 | Yes |
| Application | digium | asterisk | 1.8.25.0 | Yes |
| Application | digium | asterisk | 1.8.25.0 | Yes |
| Application | digium | asterisk | 1.8.25.0 | Yes |
| Application | digium | asterisk | 1.8.26.0 | Yes |
| Application | digium | asterisk | 1.8.26.0 | Yes |
| Application | digium | asterisk | 1.8.26.1 | Yes |
| Application | digium | asterisk | 1.8.27.0 | Yes |
| Application | digium | asterisk | 1.8.27.0 | Yes |
| Application | digium | asterisk | 1.8.27.0 | Yes |
| Application | digium | asterisk | 1.8.28.0 | Yes |
| Application | digium | asterisk | 1.8.28.0 | Yes |
| Application | digium | asterisk | 1.8.28.1 | Yes |
| Application | digium | asterisk | 1.8.28.2 | Yes |
| Application | digium | asterisk | 1.8.32.0 | Yes |
| Application | digium | asterisk | 11.0.0 | Yes |
| Application | digium | asterisk | 11.0.0 | Yes |
| Application | digium | asterisk | 11.0.0 | Yes |
| Application | digium | asterisk | 11.0.0 | Yes |
| Application | digium | asterisk | 11.0.0 | Yes |
| Application | digium | asterisk | 11.0.1 | Yes |
| Application | digium | asterisk | 11.0.2 | Yes |
| Application | digium | asterisk | 11.1.0 | Yes |
| Application | digium | asterisk | 11.1.0 | Yes |
| Application | digium | asterisk | 11.1.0 | Yes |
| Application | digium | asterisk | 11.1.0 | Yes |
| Application | digium | asterisk | 11.1.1 | Yes |
| Application | digium | asterisk | 11.1.2 | Yes |
| Application | digium | asterisk | 11.2.0 | Yes |
| Application | digium | asterisk | 11.4.0 | Yes |
| Application | digium | asterisk | 11.6.0 | Yes |
| Application | digium | asterisk | 11.6.0 | Yes |
| Application | digium | asterisk | 11.6.0 | Yes |
| Application | digium | asterisk | 11.7.0 | Yes |
| Application | digium | asterisk | 11.7.0 | Yes |
| Application | digium | asterisk | 11.7.0 | Yes |
| Application | digium | asterisk | 11.8.0 | Yes |
| Application | digium | asterisk | 11.8.0 | Yes |
| Application | digium | asterisk | 11.8.0 | Yes |
| Application | digium | asterisk | 11.8.0 | Yes |
| Application | digium | asterisk | 11.8.1 | Yes |
| Application | digium | asterisk | 11.9.0 | Yes |
| Application | digium | asterisk | 11.9.0 | Yes |
| Application | digium | asterisk | 11.9.0 | Yes |
| Application | digium | asterisk | 11.9.0 | Yes |
| Application | digium | asterisk | 11.10.0 | Yes |
| Application | digium | asterisk | 11.10.0 | Yes |
| Application | digium | asterisk | 11.10.1 | Yes |
| Application | digium | asterisk | 11.10.1 | Yes |
| Application | digium | asterisk | 11.11.0 | Yes |
| Application | digium | asterisk | 11.11.0 | Yes |
| Application | digium | asterisk | 11.12.0 | Yes |
| Application | digium | asterisk | 11.12.0 | Yes |
| Application | digium | asterisk | 11.13.0 | Yes |
| Application | digium | asterisk | 11.13.0 | Yes |
| Application | digium | asterisk | 11.14.0 | Yes |
| Application | digium | asterisk | 11.14.0 | Yes |
| Application | digium | asterisk | 11.14.0 | Yes |
| Application | digium | asterisk | 11.15.0 | Yes |
| Application | digium | asterisk | 11.15.0 | Yes |
| Application | digium | asterisk | 11.15.0 | Yes |
| Application | digium | asterisk | 11.16.0 | Yes |
| Application | digium | asterisk | 11.16.0 | Yes |
| Application | digium | asterisk | 11.17.0 | Yes |
| Application | digium | asterisk | 11.18.0 | Yes |
| Application | digium | asterisk | 11.18.0 | Yes |
| Application | digium | asterisk | 11.19.0 | Yes |
| Application | digium | asterisk | 11.20.0 | Yes |
| Application | digium | asterisk | 11.21.0 | Yes |
| Application | digium | asterisk | 11.21.0 | Yes |
| Application | digium | asterisk | 11.21.0 | Yes |
| Application | digium | asterisk | 11.21.0 | Yes |
| Application | digium | asterisk | 12.0.0 | Yes |
| Application | digium | asterisk | 12.1.0 | Yes |
| Application | digium | asterisk | 12.1.0 | Yes |
| Application | digium | asterisk | 12.1.0 | Yes |
| Application | digium | asterisk | 12.1.0 | Yes |
| Application | digium | asterisk | 12.1.1 | Yes |
| Application | digium | asterisk | 12.2.0 | Yes |
| Application | digium | asterisk | 12.2.0 | Yes |
| Application | digium | asterisk | 12.2.0 | Yes |
| Application | digium | asterisk | 12.2.0 | Yes |
| Application | digium | asterisk | 12.3.0 | Yes |
| Application | digium | asterisk | 12.3.0 | Yes |
| Application | digium | asterisk | 12.3.0 | Yes |
| Application | digium | asterisk | 12.3.1 | Yes |
| Application | digium | asterisk | 12.3.2 | Yes |
| Application | digium | asterisk | 12.4.0 | Yes |
| Application | digium | asterisk | 12.4.0 | Yes |
| Application | digium | asterisk | 12.5.0 | Yes |
| Application | digium | asterisk | 12.5.0 | Yes |
| Application | digium | asterisk | 12.6.0 | Yes |
| Application | digium | asterisk | 12.6.0 | Yes |
| Application | digium | asterisk | 12.7.0 | Yes |
| Application | digium | asterisk | 12.7.0 | Yes |
| Application | digium | asterisk | 12.7.0 | Yes |
| Application | digium | asterisk | 12.7.0 | Yes |
| Application | digium | asterisk | 12.7.1 | Yes |
| Application | digium | asterisk | 12.8.0 | Yes |
| Application | digium | asterisk | 12.8.0 | Yes |
| Application | digium | asterisk | 12.8.0 | Yes |
| Application | digium | asterisk | 12.8.1 | Yes |
| Application | digium | asterisk | 12.8.2 | Yes |
| Application | digium | asterisk | 13.0.0 | Yes |
| Application | digium | asterisk | 13.0.1 | Yes |
| Application | digium | asterisk | 13.1.0 | Yes |
| Application | digium | asterisk | 13.1.0 | Yes |
| Application | digium | asterisk | 13.1.0 | Yes |
| Application | digium | asterisk | 13.2.0 | Yes |
| Application | digium | asterisk | 13.2.0 | Yes |
| Application | digium | asterisk | 13.3.0 | Yes |
| Application | digium | asterisk | 13.4.0 | Yes |
| Application | digium | asterisk | 13.4.0 | Yes |
| Application | digium | asterisk | 13.5.0 | Yes |
| Application | digium | asterisk | 13.5.0 | Yes |
| Application | digium | asterisk | 13.6.0 | Yes |
| Application | digium | asterisk | 13.7.0 | Yes |
| Application | digium | asterisk | 13.7.0 | Yes |
| Application | digium | asterisk | 13.7.0 | Yes |
| Application | digium | asterisk | 13.7.0 | Yes |
| Application | digium | certified_asterisk | 1.8.28 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6 | Yes |
| Application | digium | certified_asterisk | 11.6.0 | Yes |
| Application | digium | certified_asterisk | 11.6.0 | Yes |
| Application | digium | certified_asterisk | 11.6.0 | Yes |
| Application | digium | certified_asterisk | 11.6.0 | Yes |
| Application | digium | certified_asterisk | 13.1 | Yes |
| Application | digium | certified_asterisk | 13.1 | Yes |
| Application | digium | certified_asterisk | 13.1 | Yes |
| Application | digium | certified_asterisk | 13.1.0 | Yes |
| Application | digium | certified_asterisk | 13.1.0 | Yes |
| Application | digium | certified_asterisk | 13.1.0 | 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.