HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade httpd-toolsUpgrade mod_mdUpgrade httpd-manualUpgrade httpd-develUpgrade httpdUpgrade httpd-filesystemUpgrade mod_http2Upgrade mod_sslUpgrade mod_sessionUpgrade mod_ldapUpgrade mod_proxy_html | Apr 15, 2024 | Apr 4, 2024 |
| Alpine Linux | — | Upgrade apache2 | Jun 6, 2024 | Apr 4, 2024 |
| Amazon Linux Ami 2 | — | Upgrade mod_http2Upgrade mod_http2-debuginfo | May 1, 2024 | Apr 4, 2024 |
| Amazon_linux | — | Upgrade httpd24 | Apr 29, 2024 | Apr 4, 2024 |
| Amazon_linux_2023 | — | Upgrade mod_http2Upgrade mod_http2-debuginfoUpgrade mod_http2-debugsource | Feb 17, 2025 | Apr 3, 2024 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Apr 9, 2024 | Apr 4, 2024 |
| Apple Osx Apache | — | Upgrade macOS to the latest version | Aug 1, 2024 | Jul 29, 2024 |
| Debian | — | Upgrade apache2 | Apr 18, 2024 | Apr 4, 2024 |
| Freebsd | — | Upgrade mod_http2Upgrade apache24 | Dec 10, 2025 | Apr 5, 2024 |
| Gentoo Linux | — | Upgrade www-servers/apache. | Sep 30, 2024 | Apr 4, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade mod_http2 | Jul 16, 2024 | Apr 4, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade mod_http2 | Jun 26, 2024 | Apr 4, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade mod_http2 | Oct 8, 2024 | Apr 4, 2024 |
| Huawei Euleros 2_0_sp8 | — | Upgrade mod_http2 | Jul 23, 2024 | Apr 4, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade httpdUpgrade httpd-toolsUpgrade mod_sslUpgrade httpd-filesystem | Jul 17, 2024 | Apr 4, 2024 |
| Oracle_linux | — | Upgrade mod_sslUpgrade httpd-filesystemUpgrade mod_sessionUpgrade mod_ldapUpgrade httpdUpgrade mod_mdUpgrade httpd-develUpgrade mod_http2Upgrade httpd-toolsUpgrade httpd-manualUpgrade mod_proxy_html | Apr 13, 2024 | Apr 3, 2024 |
| Red Hat Jboss Eap | — | Upgrade Red Hat JBoss EAP to the latest version | Sep 19, 2024 | Apr 3, 2024 |
| Redhat_linux | — | Upgrade mod_md-debuginfoUpgrade mod_ldapUpgrade mod_http2-debugsourceUpgrade httpd-manualUpgrade httpd-toolsUpgrade mod_proxy_html-debuginfoUpgrade mod_sslUpgrade httpd-debugsourceUpgrade mod_mdUpgrade mod_sessionUpgrade mod_ldap-debuginfoUpgrade httpdNo solution existsUpgrade mod_proxy_htmlUpgrade httpd-debuginfoUpgrade mod_session-debuginfoUpgrade mod_http2Upgrade mod_md-debugsourceUpgrade httpd-filesystemUpgrade mod_ssl-debuginfoUpgrade httpd-develUpgrade httpd-tools-debuginfoUpgrade mod_http2-debuginfo | Apr 12, 2024 | Apr 4, 2024 |
| Rocky_linux | — | Upgrade mod_http2-debuginfoUpgrade mod_md-debugsourceUpgrade mod_mdUpgrade httpd-develUpgrade httpd-toolsUpgrade mod_http2Upgrade mod_ssl-debuginfoUpgrade mod_ldap-debuginfoUpgrade mod_proxy_htmlUpgrade mod_session-debuginfoUpgrade httpd-debugsourceUpgrade mod_sessionUpgrade mod_md-debuginfoUpgrade httpd-tools-debuginfoUpgrade mod_sslUpgrade mod_ldapUpgrade mod_proxy_html-debuginfoUpgrade mod_http2-debugsourceUpgrade httpdUpgrade httpd-debuginfo | May 8, 2024 | Apr 4, 2024 |
| Suse | — | Upgrade apache2-tls13-develUpgrade apache2-tls13-docUpgrade apache2-eventUpgrade apache2-tls13-workerUpgrade apache2-manualUpgrade apache2-utilsUpgrade apache2-docUpgrade apache2-develUpgrade apache2-tls13Upgrade apache2-tls13-example-pagesUpgrade apache2Upgrade apache2-workerUpgrade apache2-tls13-utilsUpgrade apache2-example-pagesUpgrade apache2-preforkUpgrade apache2-tls13-prefork | May 14, 2024 | Apr 4, 2024 |
| Ubuntu | — | Upgrade apache2 (Ubuntu Pro)Upgrade apache2 | Apr 12, 2024 | Apr 4, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 4, 2024 |
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