CVE-2016-4921 (GCVE-0-2016-4921)

Vulnerability from cvelistv5 – Published: 2017-10-13 17:00 – Updated: 2024-09-17 02:47
VLAI?
Summary
By flooding a Juniper Networks router running Junos OS with specially crafted IPv6 traffic, all available resources can be consumed, leading to the inability to store next hop information for legitimate traffic. In extreme cases, the crafted IPv6 traffic may result in a total resource exhaustion and kernel panic. The issue is triggered by traffic destined to the router. Transit traffic does not trigger the vulnerability. This issue only affects devices with IPv6 enabled and configured. Devices not configured to process IPv6 traffic are unaffected by this vulnerability. This issue was found during internal product security testing. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.3 prior to 12.3R3-S4; 12.3X48 prior to 12.3X48-D30; 13.3 prior to 13.3R10, 13.3R4-S11; 14.1 prior to 14.1R2-S8, 14.1R4-S12, 14.1R8; 14.1X53 prior to 14.1X53-D28, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R3-S10, 14.2R4-S7, 14.2R6; 15.1 prior to 15.1F2-S5, 15.1F5-S2, 15.1F6, 15.1R3; 15.1X49 prior to 15.1X49-D40; 15.1X53 prior to 15.1X53-D57, 15.1X53-D70.
CWE
  • denial of service vulnerability
Assigner
References
https://kb.juniper.net/JSA10762 x_refsource_CONFIRM
http://www.securitytracker.com/id/1037014 vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/93532 vdb-entryx_refsource_BID
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 11.4 prior to 11.4R13-S3
Affected: 12.3 prior to 12.3R3-S4
Affected: 12.3X48 prior to 12.3X48-D30
Affected: 13.3 prior to 13.3R10, 13.3R4-S11
Affected: 14.1 prior to 14.1R2-S8, 14.1R4-S12, 14.1R8
Affected: 14.1X53 prior to 14.1X53-D28, 14.1X53-D40
Affected: 14.1X55 prior to 14.1X55-D35
Affected: 14.2 prior to 14.2R3-S10, 14.2R4-S7, 14.2R6
Affected: 15.1 prior to 15.1F2-S5, 15.1F5-S2, 15.1F6, 15.1R3
Affected: 15.1X49 prior to 15.1X49-D40
Affected: 15.1X53 prior to 15.1X53-D57, 15.1X53-D70
Create a notification for this product.
Show details on NVD website

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      "descriptions": "[{\"lang\": \"en\", \"value\": \"By flooding a Juniper Networks router running Junos OS with specially crafted IPv6 traffic, all available resources can be consumed, leading to the inability to store next hop information for legitimate traffic. In extreme cases, the crafted IPv6 traffic may result in a total resource exhaustion and kernel panic. The issue is triggered by traffic destined to the router. Transit traffic does not trigger the vulnerability. This issue only affects devices with IPv6 enabled and configured. Devices not configured to process IPv6 traffic are unaffected by this vulnerability. This issue was found during internal product security testing. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.3 prior to 12.3R3-S4; 12.3X48 prior to 12.3X48-D30; 13.3 prior to 13.3R10, 13.3R4-S11; 14.1 prior to 14.1R2-S8, 14.1R4-S12, 14.1R8; 14.1X53 prior to 14.1X53-D28, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R3-S10, 14.2R4-S7, 14.2R6; 15.1 prior to 15.1F2-S5, 15.1F5-S2, 15.1F6, 15.1R3; 15.1X49 prior to 15.1X49-D40; 15.1X53 prior to 15.1X53-D57, 15.1X53-D70.\"}, {\"lang\": \"es\", \"value\": \"Desbordando un router de Juniper Networks que funcione con el sistema operativo Junos OS con tr\\u00e1fico IPv6 especialmente manipulado, todos los recursos disponibles se podr\\u00edan consumir, provocando que no sea capaz de almacenar la pr\\u00f3xima informaci\\u00f3n de salto para el tr\\u00e1fico leg\\u00edtimo. En casos extremos, el tr\\u00e1fico IPv6 manipulado podr\\u00eda resultar en un consumo total de los recursos y el p\\u00e1nico del kernel. El problema lo desencadena el tr\\u00e1fico destinado al router. El tr\\u00e1fico en tr\\u00e1nsito no desencadena esta vulnerabilidad. Este problema solo afecta a los dispositivos con IPv6 habilitado y configurado. Los dispositivos no configurados para procesar tr\\u00e1fico IPv6 no se ven afectados por esta vulnerabilidad. Se encontr\\u00f3 el problema durante un an\\u00e1lisis de seguridad interno del producto. Juniper SIRT no conoce ninguna explotaci\\u00f3n maliciosa de esta vulnerabilidad. Las distribuciones afectadas son: Juniper Networks Junos OS 11.4 anteriores a 11.4R13-S3; 12.3 anteriores a 12.3R3-S4; 12.3X48 anteriores a 12.3X48-D30; 13.3 anteriores a 13.3R10, 13.3R4-S11; 14.1 anteriores a 14.1R2-S8, 14.1R4-S12, 14.1R8; 14.1X53 anteriores a 14.1X53-D28, 14.1X53-D40; 14.1X55 anteriores a 14.1X55-D35; 14.2 anteriores a 14.2R3-S10, 14.2R4-S7, 14.2R6; 15.1 anteriores a 15.1F2-S5, 15.1F5-S2, 15.1F6, 15.1R3; 15.1X49 anteriores a 15.1X49-D40; 15.1X53 anteriores a 15.1X53-D57 y 15.1X53-D70.\"}]",
      "id": "CVE-2016-4921",
      "lastModified": "2024-11-21T02:53:14.283",
      "metrics": "{\"cvssMetricV30\": [{\"source\": \"sirt@juniper.net\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:C\", \"baseScore\": 7.8, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2017-10-13T17:29:00.270",
      "references": "[{\"url\": \"http://www.securityfocus.com/bid/93532\", \"source\": \"sirt@juniper.net\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1037014\", \"source\": \"sirt@juniper.net\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://kb.juniper.net/JSA10762\", \"source\": \"sirt@juniper.net\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/93532\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1037014\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://kb.juniper.net/JSA10762\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "sirt@juniper.net",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-399\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2016-4921\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2017-10-13T17:29:00.270\",\"lastModified\":\"2025-04-20T01:37:25.860\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"By flooding a Juniper Networks router running Junos OS with specially crafted IPv6 traffic, all available resources can be consumed, leading to the inability to store next hop information for legitimate traffic. In extreme cases, the crafted IPv6 traffic may result in a total resource exhaustion and kernel panic. The issue is triggered by traffic destined to the router. Transit traffic does not trigger the vulnerability. This issue only affects devices with IPv6 enabled and configured. Devices not configured to process IPv6 traffic are unaffected by this vulnerability. This issue was found during internal product security testing. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.3 prior to 12.3R3-S4; 12.3X48 prior to 12.3X48-D30; 13.3 prior to 13.3R10, 13.3R4-S11; 14.1 prior to 14.1R2-S8, 14.1R4-S12, 14.1R8; 14.1X53 prior to 14.1X53-D28, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R3-S10, 14.2R4-S7, 14.2R6; 15.1 prior to 15.1F2-S5, 15.1F5-S2, 15.1F6, 15.1R3; 15.1X49 prior to 15.1X49-D40; 15.1X53 prior to 15.1X53-D57, 15.1X53-D70.\"},{\"lang\":\"es\",\"value\":\"Desbordando un router de Juniper Networks que funcione con el sistema operativo Junos OS con tr\u00e1fico IPv6 especialmente manipulado, todos los recursos disponibles se podr\u00edan consumir, provocando que no sea capaz de almacenar la pr\u00f3xima informaci\u00f3n de salto para el tr\u00e1fico leg\u00edtimo. En casos extremos, el tr\u00e1fico IPv6 manipulado podr\u00eda resultar en un consumo total de los recursos y el p\u00e1nico del kernel. El problema lo desencadena el tr\u00e1fico destinado al router. El tr\u00e1fico en tr\u00e1nsito no desencadena esta vulnerabilidad. Este problema solo afecta a los dispositivos con IPv6 habilitado y configurado. Los dispositivos no configurados para procesar tr\u00e1fico IPv6 no se ven afectados por esta vulnerabilidad. Se encontr\u00f3 el problema durante un an\u00e1lisis de seguridad interno del producto. Juniper SIRT no conoce ninguna explotaci\u00f3n maliciosa de esta vulnerabilidad. Las distribuciones afectadas son: Juniper Networks Junos OS 11.4 anteriores a 11.4R13-S3; 12.3 anteriores a 12.3R3-S4; 12.3X48 anteriores a 12.3X48-D30; 13.3 anteriores a 13.3R10, 13.3R4-S11; 14.1 anteriores a 14.1R2-S8, 14.1R4-S12, 14.1R8; 14.1X53 anteriores a 14.1X53-D28, 14.1X53-D40; 14.1X55 anteriores a 14.1X55-D35; 14.2 anteriores a 14.2R3-S10, 14.2R4-S7, 14.2R6; 15.1 anteriores a 15.1F2-S5, 15.1F5-S2, 15.1F6, 15.1R3; 15.1X49 anteriores a 15.1X49-D40; 15.1X53 anteriores a 15.1X53-D57 y 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Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securitytracker.com/id/1037014\",\"source\":\"sirt@juniper.net\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://kb.juniper.net/JSA10762\",\"source\":\"sirt@juniper.net\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/93532\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securitytracker.com/id/1037014\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://kb.juniper.net/JSA10762\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


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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.


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Detection rules are retrieved from Rulezet.

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