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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-11080 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.html Mailing List  Third Party Advisory 
https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090 Patch  Third Party Advisory 
https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394 Patch  Third Party Advisory 
https://github.com/nghttp2/nghttp2/security/advisories/GHSA-q5wr-xfw9-q7xr Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/
https://www.debian.org/security/2020/dsa-4696 Third Party Advisory 
https://www.oracle.com//security-alerts/cpujul2021.html Not Applicable  Third Party Advisory 
https://www.oracle.com/security-alerts/cpuapr2022.html Patch  Third Party Advisory 
https://www.oracle.com/security-alerts/cpujan2021.html Third Party Advisory 
https://www.oracle.com/security-alerts/cpujul2020.html Third Party Advisory 
https://www.oracle.com/security-alerts/cpuoct2020.html Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption cwe source acceptance level NIST  
CWE-707 Improper Neutralization GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

19 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-11080
NVD Published Date:
06/03/2020
NVD Last Modified:
11/06/2023
Source:
GitHub, Inc.