Using a specially-crafted message, an attacker may potentially cause a BIND server to reach an inconsistent state if the attacker knows (or successfully guesses) the name of a TSIG key used by the server. Since BIND, by default, configures a local session key even on servers whose configuration does not otherwise make use of it, almost all current BIND servers are vulnerable. In releases of BIND dating from March 2018 and after, an assertion check in tsig.c detects this inconsistent state and deliberately exits. Prior to the introduction of the check the server would continue operating in an inconsistent state, with potentially harmful results.
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 5 products from isc, from debian, from fedoraproject and 2 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2020-05-19T14:15:11.987
2024-11-21T05:39:07.990
Modified
CVSSv3.1: 7.5 (HIGH)
AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | isc | bind | ≤ 9.11.18 | Yes |
| Application | isc | bind | ≤ 9.12.4 | Yes |
| Application | isc | bind | ≤ 9.13.7 | Yes |
| Application | isc | bind | ≤ 9.14.11 | Yes |
| Application | isc | bind | ≤ 9.15.6 | Yes |
| Application | isc | bind | ≤ 9.16.2 | Yes |
| Application | isc | bind | ≤ 9.17.1 | Yes |
| Application | isc | bind | 9.12.4 | Yes |
| Application | isc | bind | 9.12.4 | Yes |
| Application | isc | bind | 9.9.3 | Yes |
| Application | isc | bind | 9.10.5 | Yes |
| Application | isc | bind | 9.10.7 | Yes |
| Application | isc | bind | 9.11.3 | Yes |
| Application | isc | bind | 9.11.5 | Yes |
| Application | isc | bind | 9.11.5 | Yes |
| Application | isc | bind | 9.11.6 | Yes |
| Application | isc | bind | 9.11.7 | Yes |
| Application | isc | bind | 9.11.8 | Yes |
| Operating System | debian | debian_linux | 8.0 | Yes |
| Operating System | debian | debian_linux | 9.0 | Yes |
| Operating System | debian | debian_linux | 10.0 | Yes |
| Operating System | fedoraproject | fedora | 31 | Yes |
| Operating System | fedoraproject | fedora | 32 | Yes |
| Operating System | opensuse | leap | 15.1 | Yes |
| Operating System | opensuse | leap | 15.2 | Yes |
| Operating System | canonical | ubuntu_linux | 12.04 | Yes |
| Operating System | canonical | ubuntu_linux | 14.04 | Yes |
| Operating System | canonical | ubuntu_linux | 16.04 | Yes |
| Operating System | canonical | ubuntu_linux | 18.04 | Yes |
| Operating System | canonical | ubuntu_linux | 19.10 | Yes |
| Operating System | canonical | ubuntu_linux | 20.04 | 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 isc'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.