National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-9517 Detail

Current Description

Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html
http://www.openwall.com/lists/oss-security/2019/08/15/7 Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2893
https://access.redhat.com/errata/RHSA-2019:2925
https://access.redhat.com/errata/RHSA-2019:2939
https://access.redhat.com/errata/RHSA-2019:2946
https://access.redhat.com/errata/RHSA-2019:2949
https://access.redhat.com/errata/RHSA-2019:2950
https://access.redhat.com/errata/RHSA-2019:2955
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/4610762456644181b267c846423b3a990bd4aaea1886ecc7d51febdb@%3Cannounce.httpd.apache.org%3E Issue Tracking Third Party Advisory
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba@%3Ccvs.httpd.apache.org%3E Issue Tracking Third Party Advisory
https://lists.apache.org/thread.html/d89f999e26dfb1d50f247ead1fe8538014eb412b2dbe5be4b1a9ef50@%3Cdev.httpd.apache.org%3E Issue Tracking Third Party Advisory
https://lists.apache.org/thread.html/ec97fdfc1a859266e56fef084353a34e0a0b08901b3c1aa317a43c8c@%3Cdev.httpd.apache.org%3E Issue Tracking 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/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/
https://seclists.org/bugtraq/2019/Aug/47
https://security.gentoo.org/glsa/201909-04
https://security.netapp.com/advisory/ntap-20190823-0003/
https://security.netapp.com/advisory/ntap-20190823-0005/
https://security.netapp.com/advisory/ntap-20190905-0003/
https://support.f5.com/csp/article/K02591030 Issue Tracking Third Party Advisory
https://support.f5.com/csp/article/K02591030?utm_source=f5support&utm_medium=RSS
https://usn.ubuntu.com/4113-1/
https://www.debian.org/security/2019/dsa-4509
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
https://www.synology.com/security/advisory/Synology_SA_19_33 Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Uncontrolled Resource Consumption (CWE-400)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1.0.0
Up to (including)
1.4.0
Running on/with
 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
10.12
 cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
14.04

Configuration 2 ( hide )
 cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
6.0.0
Up to (including)
6.2.3
 cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
7.0.0
Up to (including)
7.1.6
 cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
8.0.0
Up to (including)
8.0.3


Change History

27 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-9517
NVD Published Date:
08/13/2019
NVD Last Modified:
08/23/2019