CVE-2019-16770
5.3 · MEDIUMOverview
CVE-2019-16770 is a medium-severity vulnerability affecting puma puma. It was published on December 5, 2019 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
In Puma before versions 3.12.2 and 4.3.1, a poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough. This vulnerability is patched in Puma 4.3.1 and 3.12.2.
Remediation
Check the references section for vendor advisories and patches from puma. Update puma 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 |
|---|---|---|---|
| puma | puma | >= 3.0.0, < 3.12.2 | Affected |
Frequently Asked Questions
What is CVE-2019-16770?
CVE-2019-16770 is a medium-severity vulnerability affecting puma puma. It was published on December 5, 2019 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2019-16770?
This vulnerability has a CVSS 3.1 base score of 5.3, 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-2019-16770?
Check the references section for vendor advisories and patches from puma. Update puma 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-2019-16770?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-16770 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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