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.
{ "binaries": [ { "binary_name": "apache2", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-bin", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-bin-dbgsym", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-data", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-dbg", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-dbgsym", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-dev", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-dev-dbgsym", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-doc", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-suexec-custom", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-suexec-custom-dbgsym", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-suexec-pristine", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-suexec-pristine-dbgsym", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-utils", "binary_version": "2.4.18-2ubuntu3.17+esm12" }, { "binary_name": "apache2-utils-dbgsym", "binary_version": "2.4.18-2ubuntu3.17+esm12" } ], "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium" }
{ "binaries": [ { "binary_name": "apache2", "binary_version": "2.4.29-1ubuntu4.27+esm2" }, { "binary_name": "apache2-bin", "binary_version": "2.4.29-1ubuntu4.27+esm2" }, { "binary_name": "apache2-data", "binary_version": "2.4.29-1ubuntu4.27+esm2" }, { "binary_name": "apache2-dbg", "binary_version": "2.4.29-1ubuntu4.27+esm2" }, { "binary_name": "apache2-dev", "binary_version": "2.4.29-1ubuntu4.27+esm2" }, { "binary_name": "apache2-doc", "binary_version": "2.4.29-1ubuntu4.27+esm2" }, { "binary_name": "apache2-ssl-dev", "binary_version": "2.4.29-1ubuntu4.27+esm2" }, { "binary_name": "apache2-suexec-custom", "binary_version": "2.4.29-1ubuntu4.27+esm2" }, { "binary_name": "apache2-suexec-pristine", "binary_version": "2.4.29-1ubuntu4.27+esm2" }, { "binary_name": "apache2-utils", "binary_version": "2.4.29-1ubuntu4.27+esm2" } ], "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium" }
{ "binaries": [ { "binary_name": "apache2", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-bin", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-bin-dbgsym", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-data", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-dev", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-doc", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-ssl-dev", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-suexec-custom", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-suexec-custom-dbgsym", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-suexec-pristine", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-suexec-pristine-dbgsym", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-utils", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "apache2-utils-dbgsym", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "libapache2-mod-md", "binary_version": "2.4.41-4ubuntu3.17" }, { "binary_name": "libapache2-mod-proxy-uwsgi", "binary_version": "2.4.41-4ubuntu3.17" } ], "availability": "No subscription required", "ubuntu_priority": "medium" }
{ "binaries": [ { "binary_name": "apache2", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-bin", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-bin-dbgsym", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-data", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-dev", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-doc", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-ssl-dev", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-suexec-custom", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-suexec-custom-dbgsym", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-suexec-pristine", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-suexec-pristine-dbgsym", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-utils", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "apache2-utils-dbgsym", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "libapache2-mod-md", "binary_version": "2.4.52-1ubuntu4.9" }, { "binary_name": "libapache2-mod-proxy-uwsgi", "binary_version": "2.4.52-1ubuntu4.9" } ], "availability": "No subscription required", "ubuntu_priority": "medium" }
{ "binaries": [ { "binary_name": "apache2", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-bin", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-bin-dbgsym", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-data", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-dev", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-doc", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-ssl-dev", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-suexec-custom", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-suexec-custom-dbgsym", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-suexec-pristine", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-suexec-pristine-dbgsym", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-utils", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-utils-dbgsym", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "libapache2-mod-md", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "libapache2-mod-proxy-uwsgi", "binary_version": "2.4.58-1ubuntu8.1" } ], "availability": "No subscription required", "ubuntu_priority": "medium" }
{ "binaries": [ { "binary_name": "apache2", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-bin", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-bin-dbgsym", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-data", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-dev", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-doc", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-ssl-dev", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-suexec-custom", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-suexec-custom-dbgsym", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-suexec-pristine", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-suexec-pristine-dbgsym", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-utils", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "apache2-utils-dbgsym", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "libapache2-mod-md", "binary_version": "2.4.58-1ubuntu8.1" }, { "binary_name": "libapache2-mod-proxy-uwsgi", "binary_version": "2.4.58-1ubuntu8.1" } ], "availability": "No subscription required", "ubuntu_priority": "medium" }