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CVE-2019-9518

Description

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.


Affected Software


CPE Name Name Version
apple:swiftnio apple swiftnio 1.4.0
apache:traffic_server apache traffic server 8.0.3
apache:traffic_server apache traffic server 7.1.6
apache:traffic_server apache traffic server 6.2.3
canonical:ubuntu_linux canonical ubuntu linux 16.04
canonical:ubuntu_linux canonical ubuntu linux 18.04
canonical:ubuntu_linux canonical ubuntu linux 19.04
debian:debian_linux debian debian linux 9.0
debian:debian_linux debian debian linux 10.0
synology:skynas synology skynas -
synology:diskstation_manager synology diskstation manager 6.2
synology:vs960hd_firmware synology vs960hd firmware -
fedoraproject:fedora fedoraproject fedora 29
fedoraproject:fedora fedoraproject fedora 30
opensuse:leap opensuse leap 15.0
opensuse:leap opensuse leap 15.1
redhat:software_collections redhat software collections 1.0
redhat:jboss_core_services redhat jboss core services 1.0
redhat:enterprise_linux redhat enterprise linux 8.0
redhat:jboss_enterprise_application_platform redhat jboss enterprise application platform 7.2.0
redhat:quay redhat quay 3.0.0
redhat:openshift_service_mesh redhat openshift service mesh 1.0
redhat:jboss_enterprise_application_platform redhat jboss enterprise application platform 7.3.0
oracle:graalvm oracle graalvm 19.2.0
mcafee:web_gateway mcafee web gateway 7.7.2.24
mcafee:web_gateway mcafee web gateway 7.8.2.13
mcafee:web_gateway mcafee web gateway 8.2.0
nodejs:node.js nodejs node.js 8.8.1
nodejs:node.js nodejs node.js 10.12.0
nodejs:node.js nodejs node.js 12.8.1
nodejs:node.js nodejs node.js 10.16.3
nodejs:node.js nodejs node.js 8.16.1

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