CVE-2019-20392
6.5 · MEDIUMOverview
CVE-2019-20392 is a medium-severity vulnerability affecting cesnet libyang. It was published on January 22, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An invalid memory access flaw is present in libyang before v1.0-r1 in the function resolve_feature_value() when an if-feature statement is used inside a list key node, and the feature used is not defined. Applications that use libyang to parse untrusted input yang files may crash.
Remediation
Check the references section for vendor advisories and patches from cesnet. Update libyang to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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References
Frequently Asked Questions
What is CVE-2019-20392?
CVE-2019-20392 is a medium-severity vulnerability affecting cesnet libyang. It was published on January 22, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2019-20392?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-20392?
Check the references section for vendor advisories and patches from cesnet. Update libyang to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-20392?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-20392 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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