Vulnerability Details CVE-2019-9515
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.027
EPSS Ranking 85.1%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 7.8
Products affected by CVE-2019-9515
-
cpe:2.3:a:apache:traffic_server:6.0.0
-
cpe:2.3:a:apache:traffic_server:6.0.3
-
cpe:2.3:a:apache:traffic_server:6.1.0
-
cpe:2.3:a:apache:traffic_server:6.1.1
-
cpe:2.3:a:apache:traffic_server:6.2.0
-
cpe:2.3:a:apache:traffic_server:6.2.1
-
cpe:2.3:a:apache:traffic_server:6.2.2
-
cpe:2.3:a:apache:traffic_server:6.2.3
-
cpe:2.3:a:apache:traffic_server:7.0.0
-
cpe:2.3:a:apache:traffic_server:7.1.0
-
cpe:2.3:a:apache:traffic_server:7.1.1
-
cpe:2.3:a:apache:traffic_server:7.1.2
-
cpe:2.3:a:apache:traffic_server:7.1.3
-
cpe:2.3:a:apache:traffic_server:7.1.4
-
cpe:2.3:a:apache:traffic_server:7.1.5
-
cpe:2.3:a:apache:traffic_server:7.1.6
-
cpe:2.3:a:apache:traffic_server:8.0.0
-
cpe:2.3:a:apache:traffic_server:8.0.1
-
cpe:2.3:a:apache:traffic_server:8.0.2
-
cpe:2.3:a:apache:traffic_server:8.0.3
-
cpe:2.3:a:apple:swiftnio:1.0.0
-
cpe:2.3:a:apple:swiftnio:1.0.1
-
cpe:2.3:a:apple:swiftnio:1.1.0
-
cpe:2.3:a:apple:swiftnio:1.1.1
-
cpe:2.3:a:apple:swiftnio:1.2.0
-
cpe:2.3:a:apple:swiftnio:1.2.1
-
cpe:2.3:a:apple:swiftnio:1.2.2
-
cpe:2.3:a:apple:swiftnio:1.3.0
-
cpe:2.3:a:apple:swiftnio:1.3.1
-
cpe:2.3:a:apple:swiftnio:1.3.2
-
cpe:2.3:a:apple:swiftnio:1.4.0
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.3
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.3.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.3.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.3.3
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.3.4
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.4
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.0
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.3
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.3.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.3.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.3.3
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.3.4
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.3.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.3.6
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.3.7
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.4
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.4.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.4.1.0.97.6
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.4.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0.0
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0.3
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0.4
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0.6
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0.7
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0.8
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.1.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.1.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.1.3
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.1.4
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.1.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.3
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.3.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.0.0
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.0.0.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.0.0.3
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.0.0.4
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.0.0.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.0.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.2.0.45.4
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.2.0.62.4
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.3
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.3.0.79.6
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.3.0.97.6
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.3.0.99.6
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.5.0.15.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.5.0.36.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.5.0.40.5
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.6
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.6.0.11.9
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.6.0.14.9
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.6.0.68.9
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.6.0.70.9
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.2
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.2-0.0.37
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.2-0.89.37
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.2.0.11.37
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.2.0.18.37
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.2.0.32.37
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:15.0.0
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:15.0.1
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:15.0.1.0.33.11
-
cpe:2.3:a:f5:big-ip_local_traffic_manager:15.0.1.0.48.11
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.0
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.1
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.10
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.11
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.12
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.13
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.14
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.15
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.16
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.17
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.18
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.19
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.2
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.20
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.21
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.22
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.23
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.3
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.4
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.5
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.6
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.7
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.8
-
cpe:2.3:a:mcafee:web_gateway:7.7.2.9
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.0
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.1
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.10
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.11
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.12
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.2
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.3
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.4
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.5
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.6
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.7
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.8
-
cpe:2.3:a:mcafee:web_gateway:7.8.2.9
-
cpe:2.3:a:mcafee:web_gateway:8.1.0
-
cpe:2.3:a:mcafee:web_gateway:8.1.1
-
cpe:2.3:a:mcafee:web_gateway:8.1.2
-
cpe:2.3:a:mcafee:web_gateway:8.1.3
-
cpe:2.3:a:mcafee:web_gateway:8.1.4
-
cpe:2.3:a:mcafee:web_gateway:8.1.5
-
cpe:2.3:a:nodejs:node.js:10.0.0
-
cpe:2.3:a:nodejs:node.js:10.1.0
-
cpe:2.3:a:nodejs:node.js:10.10.0
-
cpe:2.3:a:nodejs:node.js:10.11.0
-
cpe:2.3:a:nodejs:node.js:10.12.0
-
cpe:2.3:a:nodejs:node.js:10.13.0
-
cpe:2.3:a:nodejs:node.js:10.14.0
-
cpe:2.3:a:nodejs:node.js:10.14.1
-
cpe:2.3:a:nodejs:node.js:10.14.2
-
cpe:2.3:a:nodejs:node.js:10.15.0
-
cpe:2.3:a:nodejs:node.js:10.15.1
-
cpe:2.3:a:nodejs:node.js:10.15.2
-
cpe:2.3:a:nodejs:node.js:10.15.3
-
cpe:2.3:a:nodejs:node.js:10.16.0
-
cpe:2.3:a:nodejs:node.js:10.16.1
-
cpe:2.3:a:nodejs:node.js:10.16.2
-
cpe:2.3:a:nodejs:node.js:10.2.0
-
cpe:2.3:a:nodejs:node.js:10.2.1
-
cpe:2.3:a:nodejs:node.js:10.3.0
-
cpe:2.3:a:nodejs:node.js:10.4.0
-
cpe:2.3:a:nodejs:node.js:10.4.1
-
cpe:2.3:a:nodejs:node.js:10.5.0
-
cpe:2.3:a:nodejs:node.js:10.6.0
-
cpe:2.3:a:nodejs:node.js:10.7.0
-
cpe:2.3:a:nodejs:node.js:10.8.0
-
cpe:2.3:a:nodejs:node.js:10.9.0
-
cpe:2.3:a:nodejs:node.js:12.0.0
-
cpe:2.3:a:nodejs:node.js:12.1.0
-
cpe:2.3:a:nodejs:node.js:12.2.0
-
cpe:2.3:a:nodejs:node.js:12.3.0
-
cpe:2.3:a:nodejs:node.js:12.3.1
-
cpe:2.3:a:nodejs:node.js:12.4.0
-
cpe:2.3:a:nodejs:node.js:12.5.0
-
cpe:2.3:a:nodejs:node.js:12.6.0
-
cpe:2.3:a:nodejs:node.js:12.7.0
-
cpe:2.3:a:nodejs:node.js:12.8.0
-
cpe:2.3:a:nodejs:node.js:8.0.0
-
cpe:2.3:a:nodejs:node.js:8.1.0
-
cpe:2.3:a:nodejs:node.js:8.1.1
-
cpe:2.3:a:nodejs:node.js:8.1.2
-
cpe:2.3:a:nodejs:node.js:8.1.3
-
cpe:2.3:a:nodejs:node.js:8.1.4
-
cpe:2.3:a:nodejs:node.js:8.10.0
-
cpe:2.3:a:nodejs:node.js:8.11.0
-
cpe:2.3:a:nodejs:node.js:8.11.1
-
cpe:2.3:a:nodejs:node.js:8.11.2
-
cpe:2.3:a:nodejs:node.js:8.11.3
-
cpe:2.3:a:nodejs:node.js:8.11.4
-
cpe:2.3:a:nodejs:node.js:8.12.0
-
cpe:2.3:a:nodejs:node.js:8.13.0
-
cpe:2.3:a:nodejs:node.js:8.14.0
-
cpe:2.3:a:nodejs:node.js:8.14.1
-
cpe:2.3:a:nodejs:node.js:8.15.0
-
cpe:2.3:a:nodejs:node.js:8.15.1
-
cpe:2.3:a:nodejs:node.js:8.16.0
-
cpe:2.3:a:nodejs:node.js:8.2.0
-
cpe:2.3:a:nodejs:node.js:8.2.1
-
cpe:2.3:a:nodejs:node.js:8.3.0
-
cpe:2.3:a:nodejs:node.js:8.4.0
-
cpe:2.3:a:nodejs:node.js:8.5.0
-
cpe:2.3:a:nodejs:node.js:8.6.0
-
cpe:2.3:a:nodejs:node.js:8.7.0
-
cpe:2.3:a:nodejs:node.js:8.8.0
-
cpe:2.3:a:nodejs:node.js:8.8.1
-
cpe:2.3:a:nodejs:node.js:8.9.0
-
cpe:2.3:a:nodejs:node.js:8.9.1
-
cpe:2.3:a:nodejs:node.js:8.9.2
-
cpe:2.3:a:nodejs:node.js:8.9.3
-
cpe:2.3:a:nodejs:node.js:8.9.4
-
cpe:2.3:a:oracle:graalvm:19.2.0
-
cpe:2.3:a:redhat:jboss_core_services:1.0
-
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2.0
-
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3.0
-
cpe:2.3:a:redhat:openshift_container_platform:4.1
-
cpe:2.3:a:redhat:openshift_service_mesh:1.0
-
cpe:2.3:a:redhat:openstack:14
-
cpe:2.3:a:redhat:quay:3.0.0
-
cpe:2.3:a:redhat:single_sign-on:7.3
-
cpe:2.3:a:redhat:software_collections:1.0
-
cpe:2.3:a:synology:skynas:-
-
cpe:2.3:h:synology:vs960hd:-
-
cpe:2.3:o:apple:mac_os_x:10.12
-
cpe:2.3:o:apple:mac_os_x:10.12.0
-
cpe:2.3:o:apple:mac_os_x:10.12.1
-
cpe:2.3:o:apple:mac_os_x:10.12.2
-
cpe:2.3:o:apple:mac_os_x:10.12.3
-
cpe:2.3:o:apple:mac_os_x:10.12.4
-
cpe:2.3:o:apple:mac_os_x:10.12.5
-
cpe:2.3:o:apple:mac_os_x:10.12.6
-
cpe:2.3:o:apple:mac_os_x:10.13
-
cpe:2.3:o:apple:mac_os_x:10.13.0
-
cpe:2.3:o:apple:mac_os_x:10.13.1
-
cpe:2.3:o:apple:mac_os_x:10.13.2
-
cpe:2.3:o:apple:mac_os_x:10.13.3
-
cpe:2.3:o:apple:mac_os_x:10.13.4
-
cpe:2.3:o:apple:mac_os_x:10.13.5
-
cpe:2.3:o:apple:mac_os_x:10.13.6
-
cpe:2.3:o:apple:mac_os_x:10.14
-
cpe:2.3:o:apple:mac_os_x:10.14.0
-
cpe:2.3:o:apple:mac_os_x:10.14.1
-
cpe:2.3:o:apple:mac_os_x:10.14.2
-
cpe:2.3:o:apple:mac_os_x:10.14.3
-
cpe:2.3:o:apple:mac_os_x:10.14.4
-
cpe:2.3:o:apple:mac_os_x:10.14.5
-
cpe:2.3:o:apple:mac_os_x:10.14.6
-
cpe:2.3:o:apple:mac_os_x:10.15
-
cpe:2.3:o:apple:mac_os_x:10.15.1
-
cpe:2.3:o:apple:mac_os_x:10.15.2
-
cpe:2.3:o:apple:mac_os_x:10.15.3
-
cpe:2.3:o:apple:mac_os_x:10.15.4
-
cpe:2.3:o:apple:mac_os_x:10.15.5
-
cpe:2.3:o:apple:mac_os_x:10.15.6
-
cpe:2.3:o:apple:mac_os_x:10.15.7
-
cpe:2.3:o:apple:mac_os_x:11.0.0
-
cpe:2.3:o:apple:mac_os_x:11.0.1
-
cpe:2.3:o:apple:mac_os_x:11.1.0
-
cpe:2.3:o:apple:mac_os_x:11.2.0
-
cpe:2.3:o:apple:mac_os_x:11.2.1
-
cpe:2.3:o:apple:mac_os_x:11.2.3
-
cpe:2.3:o:canonical:ubuntu_linux:14.04
-
cpe:2.3:o:canonical:ubuntu_linux:14.04.1
-
cpe:2.3:o:canonical:ubuntu_linux:14.04.2
-
cpe:2.3:o:canonical:ubuntu_linux:14.04.3
-
cpe:2.3:o:canonical:ubuntu_linux:14.04.4
-
cpe:2.3:o:canonical:ubuntu_linux:14.04.5
-
cpe:2.3:o:canonical:ubuntu_linux:14.04.6
-
cpe:2.3:o:canonical:ubuntu_linux:14.10
-
cpe:2.3:o:canonical:ubuntu_linux:15.04
-
cpe:2.3:o:canonical:ubuntu_linux:15.10
-
cpe:2.3:o:canonical:ubuntu_linux:16.04
-
cpe:2.3:o:canonical:ubuntu_linux:16.04.1
-
cpe:2.3:o:canonical:ubuntu_linux:16.04.2
-
cpe:2.3:o:canonical:ubuntu_linux:16.04.3
-
cpe:2.3:o:canonical:ubuntu_linux:16.04.4
-
cpe:2.3:o:canonical:ubuntu_linux:16.04.5
-
cpe:2.3:o:canonical:ubuntu_linux:16.04.6
-
cpe:2.3:o:canonical:ubuntu_linux:16.10
-
cpe:2.3:o:canonical:ubuntu_linux:17.04
-
cpe:2.3:o:canonical:ubuntu_linux:17.10
-
cpe:2.3:o:canonical:ubuntu_linux:18.04
-
cpe:2.3:o:canonical:ubuntu_linux:18.04.1
-
cpe:2.3:o:canonical:ubuntu_linux:18.04.2
-
cpe:2.3:o:canonical:ubuntu_linux:18.04.3
-
cpe:2.3:o:canonical:ubuntu_linux:18.04.4
-
cpe:2.3:o:canonical:ubuntu_linux:18.04.5
-
cpe:2.3:o:canonical:ubuntu_linux:18.04.6
-
cpe:2.3:o:canonical:ubuntu_linux:18.10
-
cpe:2.3:o:canonical:ubuntu_linux:19.04
-
cpe:2.3:o:canonical:ubuntu_linux:19.10
-
cpe:2.3:o:canonical:ubuntu_linux:20.04
-
cpe:2.3:o:canonical:ubuntu_linux:20.10
-
cpe:2.3:o:canonical:ubuntu_linux:21.04
-
cpe:2.3:o:canonical:ubuntu_linux:21.10
-
cpe:2.3:o:canonical:ubuntu_linux:22.04
-
cpe:2.3:o:canonical:ubuntu_linux:22.10
-
cpe:2.3:o:canonical:ubuntu_linux:23.04
-
cpe:2.3:o:canonical:ubuntu_linux:23.10
-
cpe:2.3:o:canonical:ubuntu_linux:24.04
-
cpe:2.3:o:debian:debian_linux:10.0
-
cpe:2.3:o:debian:debian_linux:9.0
-
cpe:2.3:o:fedoraproject:fedora:29
-
cpe:2.3:o:fedoraproject:fedora:30
-
cpe:2.3:o:opensuse:leap:15.0
-
cpe:2.3:o:opensuse:leap:15.1
-
cpe:2.3:o:redhat:enterprise_linux:8.0
-
cpe:2.3:o:synology:diskstation_manager:6.2
-
cpe:2.3:o:synology:vs960hd_firmware:-