Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- CVSS 3.0 Vector: (CVSS:3.0/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 | — | Upgrade nodejs-packagingUpgrade nodejs-nodemon | May 4, 2022 | Aug 13, 2019 |
| Alpine Linux | — | Upgrade apache2Upgrade nodejs | Aug 22, 2024 | Aug 13, 2019 |
| Amazon Linux Ami 2 | — | Upgrade mod_http2-debuginfoUpgrade mod_http2 | Apr 27, 2020 | Aug 13, 2019 |
| Amazon_linux | — | Upgrade httpd24 | Oct 26, 2019 | Aug 13, 2019 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Aug 16, 2019 | Aug 13, 2019 |
| Centos_linux | — | Upgrade httpd-debuginfoUpgrade mod_http2-debuginfoUpgrade mod_ssl-debuginfoUpgrade httpd-toolsUpgrade nodejs-devel-debuginfoUpgrade nodejs-packagingUpgrade nodejsUpgrade nodejs-debugsourceUpgrade httpd-tools-debuginfoUpgrade httpd-manualUpgrade httpdUpgrade mod_http2-debugsourceUpgrade httpd-debugsourceUpgrade httpd-develUpgrade mod_sessionUpgrade mod_proxy_htmlUpgrade nodejs-develUpgrade mod_ldapUpgrade nodejs-nodemonUpgrade mod_session-debuginfoUpgrade httpd-filesystemUpgrade nodejs-docsUpgrade mod_sslUpgrade mod_http2Upgrade nodejs-debuginfoUpgrade mod_mdUpgrade mod_proxy_html-debuginfoUpgrade npmUpgrade mod_md-debuginfoUpgrade mod_ldap-debuginfo | Sep 27, 2019 | Aug 13, 2019 |
| Debian | — | Upgrade apache2 | Aug 28, 2019 | Aug 13, 2019 |
| Freebsd | — | Upgrade apache24Upgrade node8Upgrade node10Upgrade node | Aug 21, 2019 | Aug 21, 2019 |
| Gentoo Linux | — | Upgrade www-servers/apache. | Sep 9, 2019 | Aug 13, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade httpd-develUpgrade httpd-filesystemUpgrade httpd-toolsUpgrade httpdUpgrade mod_sessionUpgrade mod_sslUpgrade httpd-manual | Feb 26, 2020 | Aug 13, 2019 |
| Ibm Http_server | — | Apply IBM HTTP Server version 9.0.5.1 or later | Nov 5, 2019 | Aug 13, 2019 |
| Ibm Was | — | Upgrade to minimal fix pack levels as required by interim fixes and then apply latest Interim Fix. | Jan 3, 2020 | Aug 13, 2019 |
| Oracle Solaris | — | Upgrade web/server/apache-24/module/apache-lua to version 2.4.41-11.4.14.0.1.1.0 on Solaris 11.4Upgrade runtime/nodejs/nodejs-8 to version 8.16.1-11.4.15.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-ssl to version 2.4.41-11.4.14.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-gss to version 2.4.41-11.4.14.0.1.1.0 on Solaris 11.4Upgrade runtime/nodejs to version 8.16.1-11.4.15.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24 to version 2.4.41-11.4.14.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-ldap to version 2.4.41-11.4.14.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-dbd to version 2.4.41-11.4.14.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-ssl-fips-140 to version 2.4.41-11.4.14.0.1.1.0 on Solaris 11.4 | Oct 16, 2019 | Aug 13, 2019 |
| Oracle_linux | — | Upgrade httpd-develUpgrade mod_sessionUpgrade httpdUpgrade httpd-manualUpgrade nodejs-develUpgrade npmUpgrade httpd-toolsUpgrade nodejsUpgrade mod_http2Upgrade mod_ldapUpgrade httpd-filesystemUpgrade nodejs-packagingUpgrade mod_mdUpgrade nodejs-docsUpgrade nodejs-nodemonUpgrade mod_sslUpgrade mod_proxy_html | Oct 5, 2022 | Aug 13, 2019 |
| Red Hat Jboss Eap | — | — | Sep 19, 2024 | Aug 13, 2019 |
| Redhat_linux | — | Upgrade nodejsUpgrade httpd-develUpgrade nodejs-docsUpgrade nodejs-debugsourceUpgrade mod_http2-debuginfoUpgrade httpd-toolsUpgrade mod_mdUpgrade nodejs-devel-debuginfoUpgrade httpd-tools-debuginfoUpgrade nodejs-packagingUpgrade httpdUpgrade mod_ssl-debuginfoUpgrade mod_http2-debugsourceUpgrade httpd-manualUpgrade httpd-debugsourceUpgrade mod_sessionUpgrade nodejs-develUpgrade mod_http2Upgrade mod_md-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade npmUpgrade nodejs-debuginfoUpgrade httpd-filesystemUpgrade mod_ldapUpgrade httpd-debuginfoUpgrade mod_sslUpgrade mod_session-debuginfoUpgrade nodejs-nodemonUpgrade mod_proxy_htmlUpgrade mod_ldap-debuginfo | Sep 25, 2019 | Aug 13, 2019 |
| Rocky_linux | — | — | Aug 15, 2024 | Aug 13, 2019 |
| Suse | — | Upgrade npm12Upgrade firefox-gdk-pixbuf-query-loadersUpgrade nodejs12-docsUpgrade npm8Upgrade firefox-gtk3-langUpgrade nodejs10-docsUpgrade mozilla-nsprUpgrade apache2Upgrade nodejs10-develUpgrade firefox-gdk-pixbuf-langUpgrade firefox-gtk3-immodule-amharicUpgrade firefox-gtk3-immodule-thaiUpgrade firefox-libffi4Upgrade mozilla-nspr-32bitUpgrade firefox-gtk3-immodule-vietnameseUpgrade firefox-atk-langUpgrade libsoftokn3-32bitUpgrade npm10Upgrade libfirefox-gthread-2_0-0Upgrade firefox-gtk3-immodules-tigrignaUpgrade firefox-gtk3-dataUpgrade firefox-gtk3-immodule-multipressUpgrade firefox-libcairo-gobject2Upgrade apache2-workerUpgrade mozilla-nspr-develUpgrade firefox-glib2-langUpgrade firefox-libgtk-3-0Upgrade firefox-libffi7Upgrade apache2-utilsUpgrade firefox-gtk3-immodule-inuktitutUpgrade firefox-libatk-1_0-0Upgrade apache2-eventUpgrade mozillafirefox-branding-sledUpgrade firefox-libharfbuzz0Upgrade firefox-gio-branding-upstreamUpgrade apache2-docUpgrade libfirefox-gio-2_0-0Upgrade mozilla-nss-develUpgrade nodejs8Upgrade apache2-example-pagesUpgrade firefox-glib2-toolsUpgrade firefox-libpango-1_0-0Upgrade nodejs10Upgrade nodejs8-docsUpgrade mozilla-nss-32bitUpgrade mozillafirefox-translations-otherUpgrade apache2-preforkUpgrade libfirefox-gobject-2_0-0Upgrade firefox-gtk3-branding-upstreamUpgrade libfreebl3-32bitUpgrade libfirefox-glib-2_0-0Upgrade firefox-gdk-pixbuf-thumbnailerUpgrade mozillafirefox-translations-commonUpgrade firefox-gtk3-toolsUpgrade libfreebl3Upgrade firefox-gtk3-immodule-ximUpgrade nodejs8-develUpgrade nodejs12-develUpgrade firefox-libcairo2Upgrade mozilla-nss-certs-32bitUpgrade apache2-develUpgrade libsoftokn3Upgrade libfirefox-gmodule-2_0-0Upgrade mozillafirefoxUpgrade mozilla-nssUpgrade mozilla-nss-certsUpgrade nodejs12Upgrade mozilla-nss-toolsUpgrade firefox-libgdk_pixbuf-2_0-0 | Sep 3, 2019 | Aug 13, 2019 |
| Ubuntu | — | Upgrade apache2Upgrade apache2-bin | Aug 30, 2019 | Aug 13, 2019 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub