CVE-2018-11763 (GCVE-0-2018-11763)

Vulnerability from cvelistv5 – Published: 2018-09-25 21:00 – Updated: 2024-09-17 02:21
VLAI
Summary
In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.
Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • mod_http2, DoS via continuous SETTINGS frames
Assigner
References
URL Tags
https://www.oracle.com/technetwork/security-advis… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:3558 vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/105414 vdb-entryx_refsource_BID
https://support.hpe.com/hpsc/doc/public/display?d… x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2019020… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:0367 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3783-1/ vendor-advisoryx_refsource_UBUNTU
https://httpd.apache.org/security/vulnerabilities… x_refsource_CONFIRM
http://www.securitytracker.com/id/1041713 vdb-entryx_refsource_SECTRACK
https://access.redhat.com/errata/RHSA-2019:0366 vendor-advisoryx_refsource_REDHAT
https://www.oracle.com/technetwork/security-advis… x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.apache.org/thread.html/56c2e7cc9deb… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/84a3714f0878… mailing-listx_refsource_MLIST
https://www.tenable.com/security/tns-2019-09 x_refsource_CONFIRM
https://lists.apache.org/thread.html/rd18c3c43602… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/re3d27b6250a… mailing-listx_refsource_MLIST
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/r15f9aa44275… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rfcf929bd33a… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9f93cf6dde3… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r6521a7f6227… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r76142b8c511… mailing-listx_refsource_MLIST
Impacted products
Date Public
2018-09-25 00:00
Show details on NVD website
To clipboard 

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      "sourceIdentifier": "security@apache.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
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Una posible mitigaci\u00f3n es no activar el protocolo 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Party Advisory\"]},{\"url\":\"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03909en_us\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3783-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2019-09\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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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.