CVE-2019-9515

CVSS V2 High 7.8 CVSS V3 High 7.5

Description

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.

Overview

CVE ID
CVE-2019-9515

Assigner
cret@cert.org

Vulnerability Status
Analyzed

Published Version
2019-08-13T21:15:12

Last Modified Date
2022-08-12T18:40:57

Weakness Enumerations

CWE	URL
CWE-770	http://cwe.mitre.org/data/definitions/770.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
		AND
cpe:2.3:a:apple:swiftnio::::::::	1	OR	1.0.0	1.4.0
cpe:2.3:o:apple:mac_os_x::::::::	0	OR	10.12
cpe:2.3:o:canonical:ubuntu_linux::::::::	0	OR	14.04
		AND
cpe:2.3:a:apache:traffic_server::::::::	1	OR	6.0.0	6.2.3
cpe:2.3:a:apache:traffic_server::::::::	1	OR	7.0.0	7.1.6
cpe:2.3:a:apache:traffic_server::::::::	1	OR	8.0.0	8.0.3
		AND
cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:19.04:::::::*	1	OR
		AND
cpe:2.3:o:debian:debian_linux:9.0:::::::*	1	OR
cpe:2.3:o:debian:debian_linux:10.0:::::::*	1	OR
		AND
cpe:2.3:a:synology:diskstation_manager:6.2:::::::*	1	OR
cpe:2.3:a:synology:skynas:-:::::::*	1	OR
		AND
cpe:2.3:o:synology:vs960hd_firmware:-:::::::*	1	OR
cpe:2.3:h:synology:vs960hd:-:::::::*	0	OR
		AND
cpe:2.3:o:fedoraproject:fedora:29:::::::*	1	OR
cpe:2.3:o:fedoraproject:fedora:30:::::::*	1	OR
		AND
cpe:2.3:o:opensuse:leap:15.0:::::::*	1	OR
cpe:2.3:o:opensuse:leap:15.1:::::::*	1	OR
		AND
cpe:2.3:a:redhat:jboss_core_services:1.0:::::::*	1	OR
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2.0:::::::*	1	OR
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3.0:::::::*	1	OR
cpe:2.3:a:redhat:openshift_container_platform:4.1:::::::*	1	OR
cpe:2.3:a:redhat:openshift_service_mesh:1.0:::::::*	1	OR
cpe:2.3:a:redhat:openstack:14:::::::*	1	OR
cpe:2.3:a:redhat:quay:3.0.0:::::::*	1	OR
cpe:2.3:a:redhat:single_sign-on:7.3:::::::*	1	OR
cpe:2.3:a:redhat:software_collections:1.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*	1	OR
		AND
cpe:2.3:a:oracle:graalvm:19.2.0::::enterprise:::	1	OR
		AND
cpe:2.3:a:mcafee:web_gateway::::::::	1	OR	7.7.2.0	7.7.2.24
cpe:2.3:a:mcafee:web_gateway::::::::	1	OR	7.8.2.0	7.8.2.13
cpe:2.3:a:mcafee:web_gateway::::::::	1	OR	8.1.0	8.2.0
		AND
cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::	1	OR	11.6.1	11.6.5.1
cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::	1	OR	12.1.0	12.1.5.1
cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::	1	OR	13.1.0	13.1.3.2
cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::	1	OR	14.0.0	14.0.1.1
cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::	1	OR	14.1.0	14.1.2.1
cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::	1	OR	15.0.0	15.0.1.1
		AND
cpe:2.3:a:nodejs:node.js:::::-:::*	1	OR	8.0.0	8.8.1
cpe:2.3:a:nodejs:node.js:::::lts:::*	1	OR	8.9.0	8.16.1
cpe:2.3:a:nodejs:node.js:::::-:::*	1	OR	10.0.0	10.12.0
cpe:2.3:a:nodejs:node.js:::::lts:::*	1	OR	10.13.0	10.16.3
cpe:2.3:a:nodejs:node.js:::::-:::*	1	OR	12.0.0	12.8.1

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
COMPLETE

Base Score
7.8

Severity
HIGH

Exploitability Score
10

Impact Score
6.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://kb.cert.org/vuls/id/605641/	Third Party Advisory US Government Resource
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md	Third Party Advisory
https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19@%3Cannounce.trafficserver.apache.org%3E	Third Party Advisory
https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04@%3Cusers.trafficserver.apache.org%3E	Third Party Advisory
https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7@%3Cdev.trafficserver.apache.org%3E	Third Party Advisory
https://seclists.org/bugtraq/2019/Aug/24	Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/16	Mailing List Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_33	Third Party Advisory
https://support.f5.com/csp/article/K50233772	Third Party Advisory
https://security.netapp.com/advisory/ntap-20190823-0005/	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/	Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Aug/43	Mailing List Third Party Advisory
https://www.debian.org/security/2019/dsa-4508	Third Party Advisory
https://www.debian.org/security/2019/dsa-4520	Third Party Advisory
https://seclists.org/bugtraq/2019/Sep/18	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html	Mailing List Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10296	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2766	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2796	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2861	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2925	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2939	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2955	Third Party Advisory
https://support.f5.com/csp/article/K50233772?utm_source=f5support&utm_medium=RSS	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3892	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4018	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4019	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4021	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4020	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4041	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4040	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4042	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4045	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4352	Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0727	Third Party Advisory
https://usn.ubuntu.com/4308-1/	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2019-9515
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9515

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 16:22:28				Added to TrackCVE
2022-12-04 01:02:49	cert@cert.org	cret@cert.org	CVE Assigner	updated
2022-12-04 01:02:49	2019-08-13T21:15Z	2019-08-13T21:15:12	CVE Published Date	updated
2022-12-04 01:02:49		2022-08-12T18:40:57	CVE Modified Date	updated
2022-12-04 01:02:49		Analyzed	Vulnerability Status	updated