CVE-2019-9748
9.1 · CRITICALOverview
CVE-2019-9748 is a critical-severity vulnerability affecting tinysvcmdns_project tinysvcmdns. It was published on March 13, 2019 and has a CVSS 3.0 base score of 9.1 (CRITICAL).
This vulnerability has a CVSS 3.0 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
In tinysvcmdns through 2018-01-16, an mDNS server processing a crafted packet can perform arbitrary data read operations up to 16383 bytes from the start of the buffer. This can lead to a segmentation fault in uncompress_nlabel in mdns.c and a crash of the server (depending on the memory protection of the CPU and the operating system), or disclosure of memory content via error messages or a server response. NOTE: the product's web site states "This project is un-maintained, and has been since 2013. ... There are known vulnerabilities ... You are advised to NOT use this library for any new projects / products."
Remediation
Check the references section for vendor advisories and patches from tinysvcmdns_project. Update tinysvcmdns 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 |
|---|---|---|---|
| tinysvcmdns_project | tinysvcmdns | 0 | Affected |
Frequently Asked Questions
What is CVE-2019-9748?
CVE-2019-9748 is a critical-severity vulnerability affecting tinysvcmdns_project tinysvcmdns. It was published on March 13, 2019 and has a CVSS 3.0 base score of 9.1 (CRITICAL).
How severe is CVE-2019-9748?
This vulnerability has a CVSS 3.0 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-9748?
Check the references section for vendor advisories and patches from tinysvcmdns_project. Update tinysvcmdns 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-2019-9748?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-9748 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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