{"id":"UBUNTU-CVE-2024-27316","details":"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.","modified":"2026-05-29T10:45:25.019623709Z","published":"2024-03-27T00:00:00Z","related":["USN-6729-1","USN-6729-2","USN-6729-3"],"upstream":["CVE-2024-27316"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-27316"},{"type":"REPORT","url":"https://kb.cert.org/vuls/id/421644"},{"type":"REPORT","url":"https://httpd.apache.org/security/vulnerabilities_24.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6729-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-27316"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6729-2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6729-3"}],"affected":[{"package":{"name":"apache2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.18-2ubuntu3.17+esm12"}]}],"versions":["2.4.12-2ubuntu2","2.4.17-1ubuntu1","2.4.17-2ubuntu1","2.4.17-3ubuntu1","2.4.18-1ubuntu1","2.4.18-2ubuntu1","2.4.18-2ubuntu2","2.4.18-2ubuntu3","2.4.18-2ubuntu3.1","2.4.18-2ubuntu3.2","2.4.18-2ubuntu3.3","2.4.18-2ubuntu3.4","2.4.18-2ubuntu3.5","2.4.18-2ubuntu3.7","2.4.18-2ubuntu3.8","2.4.18-2ubuntu3.9","2.4.18-2ubuntu3.10","2.4.18-2ubuntu3.12","2.4.18-2ubuntu3.13","2.4.18-2ubuntu3.14","2.4.18-2ubuntu3.15","2.4.18-2ubuntu3.17","2.4.18-2ubuntu3.17+esm1","2.4.18-2ubuntu3.17+esm2","2.4.18-2ubuntu3.17+esm3","2.4.18-2ubuntu3.17+esm4","2.4.18-2ubuntu3.17+esm5","2.4.18-2ubuntu3.17+esm6","2.4.18-2ubuntu3.17+esm7","2.4.18-2ubuntu3.17+esm8","2.4.18-2ubuntu3.17+esm9","2.4.18-2ubuntu3.17+esm10","2.4.18-2ubuntu3.17+esm11"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"2.4.18-2ubuntu3.17+esm12","binary_name":"apache2"},{"binary_name":"apache2-bin","binary_version":"2.4.18-2ubuntu3.17+esm12"},{"binary_name":"apache2-data","binary_version":"2.4.18-2ubuntu3.17+esm12"},{"binary_version":"2.4.18-2ubuntu3.17+esm12","binary_name":"apache2-suexec-custom"},{"binary_name":"apache2-suexec-pristine","binary_version":"2.4.18-2ubuntu3.17+esm12"},{"binary_name":"apache2-utils","binary_version":"2.4.18-2ubuntu3.17+esm12"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27316.json"}},{"package":{"name":"apache2","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.29-1ubuntu4.27+esm2"}]}],"versions":["2.4.27-2ubuntu3","2.4.29-1ubuntu1","2.4.29-1ubuntu2","2.4.29-1ubuntu3","2.4.29-1ubuntu4","2.4.29-1ubuntu4.1","2.4.29-1ubuntu4.2","2.4.29-1ubuntu4.3","2.4.29-1ubuntu4.4","2.4.29-1ubuntu4.5","2.4.29-1ubuntu4.6","2.4.29-1ubuntu4.7","2.4.29-1ubuntu4.8","2.4.29-1ubuntu4.10","2.4.29-1ubuntu4.11","2.4.29-1ubuntu4.12","2.4.29-1ubuntu4.13","2.4.29-1ubuntu4.14","2.4.29-1ubuntu4.16","2.4.29-1ubuntu4.17","2.4.29-1ubuntu4.18","2.4.29-1ubuntu4.19","2.4.29-1ubuntu4.20","2.4.29-1ubuntu4.21","2.4.29-1ubuntu4.22","2.4.29-1ubuntu4.23","2.4.29-1ubuntu4.24","2.4.29-1ubuntu4.25","2.4.29-1ubuntu4.26","2.4.29-1ubuntu4.27","2.4.29-1ubuntu4.27+esm1"],"ecosystem_specific":{"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-suexec-custom","binary_version":"2.4.29-1ubuntu4.27+esm2"},{"binary_version":"2.4.29-1ubuntu4.27+esm2","binary_name":"apache2-suexec-pristine"},{"binary_name":"apache2-utils","binary_version":"2.4.29-1ubuntu4.27+esm2"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27316.json"}},{"package":{"name":"apache2","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/apache2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.17"}]}],"versions":["2.4.41-1ubuntu1","2.4.41-4ubuntu1","2.4.41-4ubuntu2","2.4.41-4ubuntu3","2.4.41-4ubuntu3.1","2.4.41-4ubuntu3.3","2.4.41-4ubuntu3.4","2.4.41-4ubuntu3.5","2.4.41-4ubuntu3.6","2.4.41-4ubuntu3.7","2.4.41-4ubuntu3.8","2.4.41-4ubuntu3.9","2.4.41-4ubuntu3.10","2.4.41-4ubuntu3.11","2.4.41-4ubuntu3.12","2.4.41-4ubuntu3.13","2.4.41-4ubuntu3.14","2.4.41-4ubuntu3.15","2.4.41-4ubuntu3.16"],"ecosystem_specific":{"binaries":[{"binary_name":"apache2","binary_version":"2.4.41-4ubuntu3.17"},{"binary_name":"apache2-bin","binary_version":"2.4.41-4ubuntu3.17"},{"binary_version":"2.4.41-4ubuntu3.17","binary_name":"apache2-data"},{"binary_name":"apache2-suexec-custom","binary_version":"2.4.41-4ubuntu3.17"},{"binary_name":"apache2-suexec-pristine","binary_version":"2.4.41-4ubuntu3.17"},{"binary_name":"apache2-utils","binary_version":"2.4.41-4ubuntu3.17"},{"binary_name":"libapache2-mod-md","binary_version":"2.4.41-4ubuntu3.17"},{"binary_version":"2.4.41-4ubuntu3.17","binary_name":"libapache2-mod-proxy-uwsgi"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27316.json"}},{"package":{"name":"apache2","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/apache2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.52-1ubuntu4.9"}]}],"versions":["2.4.48-3.1ubuntu3","2.4.48-3.1ubuntu4","2.4.51-2ubuntu1","2.4.52-1ubuntu1","2.4.52-1ubuntu2","2.4.52-1ubuntu4","2.4.52-1ubuntu4.1","2.4.52-1ubuntu4.2","2.4.52-1ubuntu4.3","2.4.52-1ubuntu4.4","2.4.52-1ubuntu4.5","2.4.52-1ubuntu4.6","2.4.52-1ubuntu4.7","2.4.52-1ubuntu4.8"],"ecosystem_specific":{"binaries":[{"binary_name":"apache2","binary_version":"2.4.52-1ubuntu4.9"},{"binary_name":"apache2-bin","binary_version":"2.4.52-1ubuntu4.9"},{"binary_version":"2.4.52-1ubuntu4.9","binary_name":"apache2-data"},{"binary_name":"apache2-suexec-custom","binary_version":"2.4.52-1ubuntu4.9"},{"binary_version":"2.4.52-1ubuntu4.9","binary_name":"apache2-suexec-pristine"},{"binary_name":"apache2-utils","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"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27316.json"}},{"package":{"name":"apache2","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/apache2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.58-1ubuntu8.1"}]}],"versions":["2.4.57-2ubuntu2","2.4.57-2ubuntu3","2.4.58-1ubuntu1","2.4.58-1ubuntu2","2.4.58-1ubuntu6","2.4.58-1ubuntu7","2.4.58-1ubuntu8"],"ecosystem_specific":{"binaries":[{"binary_name":"apache2","binary_version":"2.4.58-1ubuntu8.1"},{"binary_version":"2.4.58-1ubuntu8.1","binary_name":"apache2-bin"},{"binary_name":"apache2-data","binary_version":"2.4.58-1ubuntu8.1"},{"binary_name":"apache2-suexec-custom","binary_version":"2.4.58-1ubuntu8.1"},{"binary_name":"apache2-suexec-pristine","binary_version":"2.4.58-1ubuntu8.1"},{"binary_name":"apache2-utils","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 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