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CVE-2017-14495 (GCVE-0-2017-14495)

Vulnerability from cvelistv5 – Published: 2017-10-02 21:00 – Updated: 2024-08-05 19:27
VLAI
Summary
Memory leak in dnsmasq before 2.78, when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service (memory consumption) via vectors involving DNS response creation.
Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
http://www.securitytracker.com/id/1039474 vdb-entryx_refsource_SECTRACK
https://www.synology.com/support/security/Synolog… x_refsource_CONFIRM
http://www.debian.org/security/2017/dsa-3989 vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/security/vulnerabilitie… x_refsource_CONFIRM
http://www.securityfocus.com/bid/101085 vdb-entryx_refsource_BID
http://www.ubuntu.com/usn/USN-3430-1 vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/101977 vdb-entryx_refsource_BID
https://www.kb.cert.org/vuls/id/973527 third-party-advisoryx_refsource_CERT-VN
https://security.gentoo.org/glsa/201710-27 vendor-advisoryx_refsource_GENTOO
http://www.ubuntu.com/usn/USN-3430-2 vendor-advisoryx_refsource_UBUNTU
https://www.mail-archive.com/dnsmasq-discuss%40li… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2017:2836 vendor-advisoryx_refsource_REDHAT
http://nvidia.custhelp.com/app/answers/detail/a_id/4561 x_refsource_CONFIRM
http://www.arubanetworks.com/assets/alert/ARUBA-P… x_refsource_CONFIRM
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3B… x_refsource_CONFIRM
https://www.exploit-db.com/exploits/42945/ exploitx_refsource_EXPLOIT-DB
http://thekelleys.org.uk/dnsmasq/CHANGELOG x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://security.googleblog.com/2017/10/behind-ma… x_refsource_MISC
https://www.mail-archive.com/dnsmasq-discuss%40li… mailing-listx_refsource_MLIST
https://cert-portal.siemens.com/productcert/pdf/s… x_refsource_CONFIRM
Date Public
2017-10-02 00:00
Show details on NVD website
To clipboard 

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      "descriptions": "[{\"lang\": \"en\", \"value\": \"Memory leak in dnsmasq before 2.78, when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service (memory consumption) via vectors involving DNS response creation.\"}, {\"lang\": \"es\", \"value\": \"Una fuga de memoria en las versiones anteriores a la 2.78 de dnsmasq, cuando est\\u00e1n especificadas las opciones --add-mac, --add-cpe-id o --add-subnet, permite que los atacantes remotos provoquen una denegaci\\u00f3n de servicio (consumo de memoria) mediante vectores relacionados con la creaci\\u00f3n de respuestas DNS.\"}]",
      "id": "CVE-2017-14495",
      "lastModified": "2024-11-21T03:12:54.787",
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      "published": "2017-10-03T01:29:02.153",
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      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-772\"}]}]"
    },
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Entry\"]},{\"url\":\"http://www.securityfocus.com/bid/101977\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securitytracker.com/id/1039474\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.ubuntu.com/usn/USN-3430-1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.ubuntu.com/usn/USN-3430-2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2017:2836\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/security/vulnerabilities/3199382\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party 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Resource\"]},{\"url\":\"https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-05-13T01:03:08+00:00",
      "cve": "CVE-2017-14495",
      "id": "CVE-2017-14495",
      "initial_release_date": "2017-10-02T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_not_affected": "11",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "dnsmasq: memory exhaustion vulnerability in the EDNS0 code",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-14495.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T08:59:05Z",
      "cve": "CVE-2017-14495",
      "id": "CVE-2017-14495",
      "initial_release_date": "2023-02-15T04:39:25Z",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "7",
      "product_status:recommended": "100",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-14495",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-14495.json",
      "version": "25"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.