CVE-2020-11080
3.7 · LOWOverview
CVE-2020-11080 is a low-severity vulnerability affecting nghttp2 nghttp2. It was published on June 3, 2020 and has a CVSS 3.1 base score of 3.7 (LOW).
This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
Remediation
Check the references section for vendor advisories and patches from nghttp2. Update nghttp2 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 |
|---|---|---|---|
| nghttp2 | nghttp2 | >= 0, < 1.41.0 | Affected |
| oracle | blockchain_platform | >= 0, < 21.1.2 | Affected |
| oracle | mysql | 7.3.0 | Affected |
| nodejs | node.js | 10.0.0 | Affected |
References
Frequently Asked Questions
What is CVE-2020-11080?
CVE-2020-11080 is a low-severity vulnerability affecting nghttp2 nghttp2. It was published on June 3, 2020 and has a CVSS 3.1 base score of 3.7 (LOW).
How severe is CVE-2020-11080?
This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-11080?
Check the references section for vendor advisories and patches from nghttp2. Update nghttp2 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-2020-11080?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-11080 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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