CVE-2019-9517 (GCVE-0-2019-9517)

Vulnerability from cvelistv5 – Published: 2019-08-13 20:50 – Updated: 2024-08-04 21:54
VLAI
Title
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service
Summary
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.
Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
URL Tags
https://kb.cert.org/vuls/id/605641/ third-party-advisoryx_refsource_CERT-VN
https://github.com/Netflix/security-bulletins/blo… x_refsource_MISC
https://lists.apache.org/thread.html/461076245664… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/56c2e7cc9deb… mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2019/08/15/7 mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/ec97fdfc1a85… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/d89f999e26df… mailing-listx_refsource_MLIST
https://www.synology.com/security/advisory/Synolo… x_refsource_CONFIRM
https://support.f5.com/csp/article/K02591030 x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2019082… x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2019082… x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2019/dsa-4509 vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/Aug/47 mailing-listx_refsource_BUGTRAQ
https://usn.ubuntu.com/4113-1/ vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://security.netapp.com/advisory/ntap-2019090… x_refsource_CONFIRM
https://security.gentoo.org/glsa/201909-04 vendor-advisoryx_refsource_GENTOO
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://kc.mcafee.com/corporate/index?page=conten… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:2893 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2925 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2939 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2946 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2950 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2949 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2955 vendor-advisoryx_refsource_REDHAT
https://support.f5.com/csp/article/K02591030?utm_… x_refsource_CONFIRM
https://www.oracle.com/technetwork/security-advis… x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:3933 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3935 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3932 vendor-advisoryx_refsource_REDHAT
https://lists.apache.org/thread.html/rd18c3c43602… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/re3d27b6250a… mailing-listx_refsource_MLIST
https://www.oracle.com/security-alerts/cpuapr2020.html x_refsource_MISC
https://lists.apache.org/thread.html/rf6449464fd8… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r06f0d87ebb6… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rc998b18880d… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r03ee478b3dd… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rd2fb621142e… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9f93cf6dde3… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r3c5c3104813… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r76142b8c511… mailing-listx_refsource_MLIST
Credits
Thanks to Jonathan Looney of Netflix for reporting this vulnerability.
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List\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201909-04\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20190823-0003/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20190823-0005/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20190905-0003/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://support.f5.com/csp/article/K02591030\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://support.f5.com/csp/article/K02591030?utm_source=f5support\u0026amp%3Butm_medium=RSS\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/4113-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2019/dsa-4509\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpuapr2020.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.synology.com/security/advisory/Synology_SA_19_33\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.