CVE-2019-9516 (GCVE-0-2019-9516)

Vulnerability from cvelistv5 – Published: 2019-08-13 20:50 – Updated: 2024-08-04 21:54
VLAI?
Title
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service
Summary
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.
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
https://usn.ubuntu.com/4099-1/ vendor-advisoryx_refsource_UBUNTU
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/K02591030 x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://seclists.org/bugtraq/2019/Aug/40 mailing-listx_refsource_BUGTRAQ
https://www.debian.org/security/2019/dsa-4505 vendor-advisoryx_refsource_DEBIAN
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://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
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
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-2019:2745 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2746 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2775 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2799 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-2019:2955 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2966 vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://support.f5.com/csp/article/K02591030?utm_… x_refsource_CONFIRM
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.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
Credits
Thanks to Jonathan Looney of Netflix for reporting this vulnerability.
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        "discovery": "UNKNOWN"
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      "title": "Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service",
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              "refsource": "REDHAT",
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              "refsource": "REDHAT",
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              "name": "RHSA-2019:3935",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:3935"
            },
            {
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              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:3932"
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  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2019-9516",
    "datePublished": "2019-08-13T20:50:59.000Z",
    "dateReserved": "2019-03-01T00:00:00.000Z",
    "dateUpdated": "2024-08-04T21:54:44.285Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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Tags
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.