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CVE-2019-9517

Description

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.


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
apache:http_server apache http server 2.4.40
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:retail_xstore_point_of_service oracle retail xstore point of service 7.1
oracle:graalvm oracle graalvm 19.2.0
oracle:instantis_enterprisetrack oracle instantis enterprisetrack 17.3
oracle:communications_element_manager oracle communications element manager 8.2.0
oracle:communications_element_manager oracle communications element manager 8.1.1
oracle:communications_element_manager oracle communications element manager 8.1.0
oracle:communications_element_manager oracle communications element manager 8.0.0
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
netapp:clustered_data_ontap netapp clustered data ontap -
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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