HOME VULNERABILITIESCVE-2019-9514

HIGH

CVE-2019-9514

CWE-400Published: August 13, 2019· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.

Technical Analysis

CVE-2019-9514 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Affected Vendors & Products

Apache1 product(s)

traffic server

Apple2 product(s)

swiftniomac os x

Canonical1 product(s)

ubuntu linux

Debian1 product(s)

debian linux

f51 product(s)

big-ip local traffic manager

Fedora1 product(s)

fedora

mcafee1 product(s)

web gateway

netapp2 product(s)

cloud insightstrident

Node.js1 product(s)

node.js

openSUSE1 product(s)

leap

Oracle1 product(s)

graalvm

Red Hat13 product(s)

developer toolsjboss core servicesjboss enterprise application platformopenshift container platformopenshift service meshopenstackquaysingle sign-onsoftware collectionsenterprise linuxenterprise linux eusenterprise linux server+1

synology4 product(s)

skynasdiskstation managervs960hd firmwarevs960hd

Source: NVD CPE · 41 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

ADVISORYhttps://support.f5.com/csp/article/K01988340

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

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

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

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

ADVISORYhttps://www.debian.org/security/2020/dsa-4669

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

ADVISORYhttps://support.f5.com/csp/article/K01988340

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

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

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

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

ADVISORYhttps://www.debian.org/security/2020/dsa-4669

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

All References (134)

→

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00076.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00002.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00011.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00021.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00038.htmlMailing List · Third Party Advisory

→

http://seclists.org/fulldisclosure/2019/Aug/16Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2019/08/20/1Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2023/10/18/8

→

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

→

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

→

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

→

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

→

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

Quick Facts

CVE IDCVE-2019-9514

CVSS Score7.5 / 10

SeverityHIGH

WeaknessCWE-400

CISA KEVNo

Affected13 vendor(s)

PublishedAug 13, 2019

Related CVEs (CWE-400)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2019-9514 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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