CVE-2019-9512

high

Description

Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

References

https://www.synology.com/security/advisory/Synology_SA_19_33

https://www.debian.org/security/2019/dsa-4520

https://www.debian.org/security/2019/dsa-4508

https://www.debian.org/security/2019/dsa-4503

https://usn.ubuntu.com/4308-1/

https://support.f5.com/csp/article/K98053339

https://security.netapp.com/advisory/ntap-20190823-0005/

https://security.netapp.com/advisory/ntap-20190823-0004/

https://security.netapp.com/advisory/ntap-20190823-0001/

https://seclists.org/bugtraq/2019/Sep/18

https://seclists.org/bugtraq/2019/Aug/43

https://seclists.org/bugtraq/2019/Aug/31

https://seclists.org/bugtraq/2019/Aug/24

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYO6E3H34C346D2E443GLXK7OK6KIYIQ/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BBP27PZGSY6OP6D26E5FW4GZKBFHNU7/

https://lists.debian.org/debian-lts-announce/2020/12/msg00011.html

https://kc.mcafee.com/corporate/index?page=content&id=SB10296

https://kb.cert.org/vuls/id/605641/

https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md

https://access.redhat.com/errata/RHSA-2020:0727

https://access.redhat.com/errata/RHSA-2020:0406

https://access.redhat.com/errata/RHSA-2019:4352

https://access.redhat.com/errata/RHSA-2019:4273

https://access.redhat.com/errata/RHSA-2019:4269

https://access.redhat.com/errata/RHSA-2019:4045

https://access.redhat.com/errata/RHSA-2019:4042

https://access.redhat.com/errata/RHSA-2019:4041

https://access.redhat.com/errata/RHSA-2019:4040

https://access.redhat.com/errata/RHSA-2019:4021

https://access.redhat.com/errata/RHSA-2019:4020

https://access.redhat.com/errata/RHSA-2019:4019

https://access.redhat.com/errata/RHSA-2019:4018

https://access.redhat.com/errata/RHSA-2019:3906

https://access.redhat.com/errata/RHSA-2019:3892

https://access.redhat.com/errata/RHSA-2019:3265

https://access.redhat.com/errata/RHSA-2019:3245

https://access.redhat.com/errata/RHSA-2019:3131

https://access.redhat.com/errata/RHSA-2019:2966

https://access.redhat.com/errata/RHSA-2019:2955

https://access.redhat.com/errata/RHSA-2019:2939

https://access.redhat.com/errata/RHSA-2019:2925

https://access.redhat.com/errata/RHSA-2019:2861

https://access.redhat.com/errata/RHSA-2019:2796

https://access.redhat.com/errata/RHSA-2019:2769

https://access.redhat.com/errata/RHSA-2019:2766

https://access.redhat.com/errata/RHSA-2019:2726

https://access.redhat.com/errata/RHSA-2019:2690

https://access.redhat.com/errata/RHSA-2019:2682

https://access.redhat.com/errata/RHSA-2019:2661

https://access.redhat.com/errata/RHSA-2019:2594

http://www.openwall.com/lists/oss-security/2019/08/20/1

http://seclists.org/fulldisclosure/2019/Aug/16

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00038.html

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00021.html

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00011.html

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00002.html

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00076.html

https://www.tenable.com/blog/multiple-denial-of-service-dos-vulnerabilities-in-http2-disclosed-cve-2019-9511-cve-2019-9518

https://support.f5.com/csp/article/K98053339?utm_source=f5support&amp%3Butm_medium=RSS

https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7%40%3Cdev.trafficserver.apache.org%3E

https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19%40%3Cannounce.trafficserver.apache.org%3E

https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04%40%3Cusers.trafficserver.apache.org%3E

Details

Source: Mitre, NVD

Published: 2019-08-13

Updated: 2023-11-07

Named Vulnerability: Ping Flood

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.22203