CVE-2019-9515 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score matches with CNA score
CNA:  CERT/CC
Base Score:  7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: The NVD and the CNA have provided the same score. When this occurs only the CNA information is displayed, but the Acceptance Level icon for the CNA is given a checkmark to signify NVD concurrence.

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption cwe source acceptance level NIST   Reference acceptance level CERT/CC  

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Change History

28 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-9515
NVD Published Date:
08/13/2019
NVD Last Modified:
08/23/2019
Source:
MITRE