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CVE-2017-8779 (GCVE-0-2017-8779)

Vulnerability from cvelistv5 – Published: 2017-05-04 14:00 – Updated: 2024-08-05 16:48
VLAI
Summary
rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation for XDR strings, which allows remote attackers to cause a denial of service (memory consumption with no subsequent free) via a crafted UDP packet to port 111, aka rpcbomb.
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
https://usn.ubuntu.com/3759-2/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2017:1267 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3759-1/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2017:1262 vendor-advisoryx_refsource_REDHAT
https://guidovranken.wordpress.com/2017/05/03/rpc… x_refsource_MISC
https://access.redhat.com/errata/RHSA-2017:1268 vendor-advisoryx_refsource_REDHAT
https://github.com/drbothen/GO-RPCBOMB x_refsource_MISC
https://access.redhat.com/errata/RHBA-2017:1497 vendor-advisoryx_refsource_REDHAT
https://github.com/guidovranken/rpcbomb/ x_refsource_MISC
https://security.netapp.com/advisory/ntap-2018010… x_refsource_CONFIRM
https://security.gentoo.org/glsa/201706-07 vendor-advisoryx_refsource_GENTOO
http://www.securitytracker.com/id/1038532 vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/98325 vdb-entryx_refsource_BID
http://openwall.com/lists/oss-security/2017/05/03/12 x_refsource_MISC
http://openwall.com/lists/oss-security/2017/05/04/1 x_refsource_MISC
https://access.redhat.com/errata/RHSA-2017:1395 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:1263 vendor-advisoryx_refsource_REDHAT
https://www.exploit-db.com/exploits/41974/ exploitx_refsource_EXPLOIT-DB
http://www.debian.org/security/2017/dsa-3845 vendor-advisoryx_refsource_DEBIAN
Date Public
2017-05-04 00:00
Show details on NVD website
To clipboard 

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      "references": "[{\"url\": \"http://openwall.com/lists/oss-security/2017/05/03/12\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"http://openwall.com/lists/oss-security/2017/05/04/1\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"http://www.debian.org/security/2017/dsa-3845\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.securityfocus.com/bid/98325\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1038532\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://access.redhat.com/errata/RHBA-2017:1497\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1262\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1263\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1267\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1268\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1395\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://github.com/drbothen/GO-RPCBOMB\", \"source\": \"cve@mitre.org\", \"tags\": [\"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/guidovranken/rpcbomb/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://security.gentoo.org/glsa/201706-07\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20180109-0001/\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://usn.ubuntu.com/3759-1/\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://usn.ubuntu.com/3759-2/\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://www.exploit-db.com/exploits/41974/\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://openwall.com/lists/oss-security/2017/05/03/12\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"http://openwall.com/lists/oss-security/2017/05/04/1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"http://www.debian.org/security/2017/dsa-3845\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securityfocus.com/bid/98325\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1038532\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://access.redhat.com/errata/RHBA-2017:1497\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1262\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1263\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1267\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1268\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2017:1395\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://github.com/drbothen/GO-RPCBOMB\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/guidovranken/rpcbomb/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://security.gentoo.org/glsa/201706-07\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20180109-0001/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://usn.ubuntu.com/3759-1/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://usn.ubuntu.com/3759-2/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://www.exploit-db.com/exploits/41974/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-770\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2017-8779\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2017-05-04T14:29:00.230\",\"lastModified\":\"2026-05-13T00:24:29.033\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation for XDR strings, which allows remote attackers to cause a denial of service (memory consumption with no subsequent free) via a crafted UDP packet to port 111, aka rpcbomb.\"},{\"lang\":\"es\",\"value\":\"Rpcbind versi\u00f3n 0.2.4, LIBTIRPC versi\u00f3n 1.0.1 y versiones 1.0.2-rc a 1.0.2-rc3, y NTIRPC versi\u00f3n 1.4.3, no consideran el tama\u00f1o m\u00e1ximo de datos RPC durante la asignaci\u00f3n de memoria para cadenas XDR, lo que permite a atacantes remotos causar una denegaci\u00f3n de servicio (consumo de memoria sin liberaci\u00f3n) a trav\u00e9s de un paquete UDP manipulado enviado al puerto 111, tambi\u00e9n conocido como 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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-28T11:45:42+00:00",
      "cve": "CVE-2017-8779",
      "id": "CVE-2017-8779",
      "initial_release_date": "2017-05-03T00:00:00+00:00",
      "product_status:fixed": "439",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "libntirpc: Memory leak when failing to parse XDR strings or bytearrays",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-8779.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-31T09:06:55Z",
      "cve": "CVE-2017-8779",
      "id": "CVE-2017-8779",
      "initial_release_date": "2023-02-15T04:45:52Z",
      "product_status:known_affected": "320",
      "product_status:known_not_affected": "26",
      "product_status:recommended": "248",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-8779",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-8779.json",
      "version": "50"
    }
  }
}



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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.