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.
CVSS Details
- CVSS 3.1 Base Score: 3.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-libnghttp2alma-upgrade-libnghttp2-develalma-upgrade-nghttp2alma-upgrade-nodejs-nodemonalma-upgrade-nodejs-packaging | May 4, 2022 | Jun 3, 2020 | |
| Alpine Linux | alpine-linux-upgrade-nghttp2alpine-linux-upgrade-nodejsalpine-linux-upgrade-nodejs-current | Mar 26, 2024 | Jun 3, 2020 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-libnghttp2amazon-linux-ami-2-upgrade-libnghttp2-develamazon-linux-ami-2-upgrade-nghttp2amazon-linux-ami-2-upgrade-nghttp2-debuginfo | Jul 2, 2020 | Jun 3, 2020 | |
| Amazon_linux | — | amazon-linux-upgrade-nghttp2 | Jul 30, 2020 | Jun 3, 2020 |
| Centos_linux | — | centos-upgrade-libnghttp2centos-upgrade-libnghttp2-debuginfocentos-upgrade-nghttp2-debuginfocentos-upgrade-nghttp2-debugsourcecentos-upgrade-nodejscentos-upgrade-nodejs-debuginfocentos-upgrade-nodejs-debugsourcecentos-upgrade-nodejs-develcentos-upgrade-nodejs-docscentos-upgrade-nodejs-full-i18ncentos-upgrade-nodejs-nodemoncentos-upgrade-nodejs-packagingcentos-upgrade-npm | Jun 26, 2020 | Jun 3, 2020 |
| Debian | debian-upgrade-nghttp2debian-upgrade-nodejs | Jun 8, 2020 | Jun 3, 2020 | |
| Freebsd | freebsd-upgrade-package-nodefreebsd-upgrade-package-node12freebsd-upgrade-package-node10freebsd-upgrade-package-nghttp2freebsd-upgrade-package-libnghttp2 | Jun 12, 2020 | Jun 12, 2020 | |
| Huawei Euleros 2_0_sp8 | huawei-euleros-2_0_sp8-upgrade-libnghttp2 | Jul 31, 2020 | Jun 3, 2020 | |
| Oracle Mysql | mysql-upgrade-latest | Apr 8, 2021 | Jun 3, 2020 | |
| Oracle Solaris | oracle-solaris-11-4-upgrade-library-nghttp2-1-41-0-11-4-25-0-1-75-2oracle-solaris-11-4-upgrade-runtime-nodejs-12-18-3-11-4-26-0-1-75-3oracle-solaris-11-4-upgrade-runtime-nodejs-nodejs-10-10-22-0-11-4-26-0-1-75-3oracle-solaris-11-4-upgrade-runtime-nodejs-nodejs-12-12-18-3-11-4-26-0-1-75-3 | Jan 19, 2021 | Jun 3, 2020 | |
| Oracle_linux | — | oracle-linux-upgrade-istiooracle-linux-upgrade-istio-citadeloracle-linux-upgrade-istio-galleyoracle-linux-upgrade-istio-istioctloracle-linux-upgrade-istio-mixcoracle-linux-upgrade-istio-mixsoracle-linux-upgrade-istio-node-agentoracle-linux-upgrade-istio-pilot-agentoracle-linux-upgrade-istio-pilot-discoveryoracle-linux-upgrade-istio-proxy-initoracle-linux-upgrade-istio-sidecar-injectororacle-linux-upgrade-kataoracle-linux-upgrade-kata-imageoracle-linux-upgrade-kata-runtimeoracle-linux-upgrade-kernel-uek-containeroracle-linux-upgrade-kubeadmoracle-linux-upgrade-kubectloracle-linux-upgrade-kubeletoracle-linux-upgrade-libnghttp2oracle-linux-upgrade-libnghttp2-develoracle-linux-upgrade-nghttp2oracle-linux-upgrade-nodejsoracle-linux-upgrade-nodejs-develoracle-linux-upgrade-nodejs-docsoracle-linux-upgrade-nodejs-full-i18noracle-linux-upgrade-nodejs-nodemonoracle-linux-upgrade-nodejs-packagingoracle-linux-upgrade-npmoracle-linux-upgrade-olcne-agentoracle-linux-upgrade-olcne-api-serveroracle-linux-upgrade-olcnectloracle-linux-upgrade-olcne-istio-chartoracle-linux-upgrade-olcne-nginxoracle-linux-upgrade-olcne-prometheus-chartoracle-linux-upgrade-olcne-utils | Jul 22, 2020 | Jun 2, 2020 |
| Redhat_linux | redhat-upgrade-libnghttp2redhat-upgrade-libnghttp2-debuginforedhat-upgrade-libnghttp2-develredhat-upgrade-nghttp2redhat-upgrade-nghttp2-debuginforedhat-upgrade-nghttp2-debugsourceredhat-upgrade-nodejsredhat-upgrade-nodejs-debuginforedhat-upgrade-nodejs-debugsourceredhat-upgrade-nodejs-develredhat-upgrade-nodejs-docsredhat-upgrade-nodejs-full-i18nredhat-upgrade-nodejs-nodemonredhat-upgrade-nodejs-packagingredhat-upgrade-npm | Jun 26, 2020 | Jun 3, 2020 | |
| Rocky_linux | rocky-upgrade-libnghttp2rocky-upgrade-libnghttp2-debuginforocky-upgrade-libnghttp2-develrocky-upgrade-nghttp2rocky-upgrade-nghttp2-debuginforocky-upgrade-nghttp2-debugsource | Mar 12, 2024 | Jun 3, 2020 | |
| Suse | — | suse-upgrade-libnghttp2-14suse-upgrade-libnghttp2-14-32bitsuse-upgrade-libnghttp2-develsuse-upgrade-libnghttp2_asio-develsuse-upgrade-libnghttp2_asio1suse-upgrade-libnghttp2_asio1-32bitsuse-upgrade-nghttp2suse-upgrade-nodejs10suse-upgrade-nodejs10-develsuse-upgrade-nodejs10-docssuse-upgrade-nodejs12suse-upgrade-nodejs12-develsuse-upgrade-nodejs12-docssuse-upgrade-nodejs14suse-upgrade-nodejs14-develsuse-upgrade-nodejs14-docssuse-upgrade-nodejs8suse-upgrade-nodejs8-develsuse-upgrade-nodejs8-docssuse-upgrade-npm10suse-upgrade-npm12suse-upgrade-npm14suse-upgrade-npm8suse-upgrade-python3-nghttp2 | Jun 10, 2020 | Jun 3, 2020 |
| Ubuntu | ubuntu-pro-upgrade-libnghttp2-14ubuntu-pro-upgrade-libnghttp2-devubuntu-pro-upgrade-nghttp2ubuntu-pro-upgrade-nghttp2-clientubuntu-pro-upgrade-nghttp2-proxyubuntu-pro-upgrade-nghttp2-serverubuntu-upgrade-libnghttp2-14ubuntu-upgrade-libnghttp2-devubuntu-upgrade-nghttp2ubuntu-upgrade-nghttp2-clientubuntu-upgrade-nghttp2-proxyubuntu-upgrade-nghttp2-server | Jun 7, 2023 | Jun 3, 2020 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jan 20, 2025 | Jun 3, 2020 |
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