CVE-2019-9518 (GCVE-0-2019-9518)

Vulnerability from cvelistv5 – Published: 2019-08-13 20:50 – Updated: 2024-08-04 21:54
VLAI?
Summary
Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.
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
https://kb.cert.org/vuls/id/605641/ third-party-advisoryx_refsource_CERT-VN
https://github.com/Netflix/security-bulletins/blo… x_refsource_MISC
https://seclists.org/bugtraq/2019/Aug/24 mailing-listx_refsource_BUGTRAQ
http://seclists.org/fulldisclosure/2019/Aug/16 mailing-listx_refsource_FULLDISC
https://www.synology.com/security/advisory/Synolo… x_refsource_CONFIRM
https://support.f5.com/csp/article/K46011592 x_refsource_CONFIRM
https://lists.apache.org/thread.html/2653c5654557… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/091b518265bc… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/ff5b0821a698… mailing-listx_refsource_MLIST
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-4520 vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/Sep/18 mailing-listx_refsource_BUGTRAQ
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-2019:2925 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2939 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2955 vendor-advisoryx_refsource_REDHAT
https://support.f5.com/csp/article/K46011592?utm_… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:3892 vendor-advisoryx_refsource_REDHAT
https://lists.apache.org/thread.html/9317fd092b25… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2019:4352 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0727 vendor-advisoryx_refsource_REDHAT
https://lists.apache.org/thread.html/r99a625fb170… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rd31230d01fa… mailing-listx_refsource_MLIST
Credits
Thanks to Piotr Sikora of Google for reporting this vulnerability.
Show details on NVD website
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    "dateReserved": "2019-03-01T00:00:00",
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.\"}, {\"lang\": \"es\", \"value\": \"Algunas implementaciones de HTTP / 2 son vulnerables a una avalancha de tramas vac\\u00edas, lo que puede conducir a una denegaci\\u00f3n de servicio. El atacante env\\u00eda una secuencia de tramas con una carga \\u00fatil vac\\u00eda y sin el indicador de fin de secuencia. Estos marcos pueden ser DATA, HEADERS, CONTINUATION y / o PUSH_PROMISE. El par pasa tiempo procesando cada cuadro desproporcionado para atacar el ancho de banda. Esto puede consumir un exceso de CPU.\"}]",
      "id": "CVE-2019-9518",
      "lastModified": "2024-11-21T04:51:47.587",
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      "published": "2019-08-13T21:15:13.003",
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      "sourceIdentifier": "cret@cert.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"cret@cert.org\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-400\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-770\"}]}]"
    },
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Estos marcos pueden ser DATA, HEADERS, CONTINUATION y / o PUSH_PROMISE. El par pasa tiempo procesando cada cuadro desproporcionado para atacar el ancho de banda. 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  }
}


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Taxonomy of the tags.




Sightings

Author Source Type Date

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.