Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
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History
No history.
Information
Published : 2019-08-13 21:15
Updated : 2026-06-17 02:43
NVD link : CVE-2019-9515
Mitre link : CVE-2019-9515
CVE.ORG link : CVE-2019-9515
JSON object : View
Products Affected
redhat
- openshift_container_platform
- enterprise_linux
- single_sign-on
- openstack
- jboss_core_services
- openshift_service_mesh
- jboss_enterprise_application_platform
- software_collections
- quay
apple
- swiftnio
- mac_os_x
synology
- vs960hd
- diskstation_manager
- vs960hd_firmware
- skynas
oracle
- graalvm
nodejs
- node.js
mcafee
- web_gateway
f5
- big-ip_local_traffic_manager
fedoraproject
- fedora
debian
- debian_linux
opensuse
- leap
apache
- traffic_server
canonical
- ubuntu_linux
