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VAR-201810-1465

Vulnerability from variot - Updated: 2024-11-23 22:26

A vulnerability in the IP next-hop index database in Junos OS 17.3R3 may allow a flood of ARP requests, sent to the management interface, to exhaust the private Internal routing interfaces (IRIs) next-hop limit. Once the IRI next-hop database is full, no further next hops can be learned and existing entries cannot be cleared, leading to a sustained denial of service (DoS) condition. An indicator of compromise for this issue is the report of the following error message: %KERN-4: Nexthop index allocation failed: private index space exhausted This issue only affects the management interface, and does not impact regular transit traffic through the FPCs. This issue also only affects Junos OS 17.3R3. No prior versions of Junos OS are affected by this issue. Affected releases are Juniper Networks Junos OS: 17.3R3. Juniper Networks Junos OS Contains a resource exhaustion vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. The operating system provides a secure programming interface and Junos SDK. IP next-hop index database is one of the index database components. An attacker can exploit this vulnerability to cause a denial of service by sending a large number of ARP requests to the management interface

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CVE-2018-0063 (GCVE-0-2018-0063)

Vulnerability from cvelistv5 – Published: 2018-10-10 18:00 – Updated: 2024-09-16 18:29

Title

Junos OS: Nexthop index allocation failed: private index space exhausted after incoming ARP requests to management interface

Summary

Severity

6.5 (Medium)


                        
                          CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

Denial of Service

Assigner

juniper

References

2 references

URL	Tags
http://www.securitytracker.com/id/1041861	vdb-entryx_refsource_SECTRACK
https://kb.juniper.net/JSA10899	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Juniper Networks	Junos OS	Affected: 17.3R3 , < 17.3R3-S1 (custom)

Date Public

2018-10-10 00:00

Show details on NVD website

JSON

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          "value": "A vulnerability in the IP next-hop index database in Junos OS 17.3R3 may allow a flood of ARP requests, sent to the management interface, to exhaust the private Internal routing interfaces (IRIs) next-hop limit. Once the IRI next-hop database is full, no further next hops can be learned and existing entries cannot be cleared, leading to a sustained denial of service (DoS) condition. An indicator of compromise for this issue is the report of the following error message: %KERN-4: Nexthop index allocation failed: private index space exhausted This issue only affects the management interface, and does not impact regular transit traffic through the FPCs. This issue also only affects Junos OS 17.3R3. No prior versions of Junos OS are affected by this issue. Affected releases are Juniper Networks Junos OS: 17.3R3."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Denial of Service",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-10-11T09:57:01.000Z",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
      },
      "references": [
        {
          "name": "1041861",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1041861"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.juniper.net/JSA10899"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "The following software releases have been updated to recover from private index space exhaustion: 17.3R3-S1 and all subsequent releases."
        }
      ],
      "source": {
        "advisory": "JSA10899",
        "defect": [
          "1360039"
        ],
        "discovery": "USER"
      },
      "title": "Junos OS: Nexthop index allocation failed: private index space exhausted after incoming ARP requests to management interface",
      "workarounds": [
        {
          "lang": "en",
          "value": "There are no viable workarounds for this issue."
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sirt@juniper.net",
          "DATE_PUBLIC": "2018-10-10T16:00:00.000Z",
          "ID": "CVE-2018-0063",
          "STATE": "PUBLIC",
          "TITLE": "Junos OS: Nexthop index allocation failed: private index space exhausted after incoming ARP requests to management interface"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Junos OS",
                      "version": {
                        "version_data": [
                          {
                            "affected": "\u003c",
                            "version_affected": "\u003c",
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                      }
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                },
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          }
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        "data_version": "4.0",
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            }
          ]
        },
        "exploit": [
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            "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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              "refsource": "SECTRACK",
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            },
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              "refsource": "CONFIRM",
              "url": "https://kb.juniper.net/JSA10899"
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          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "The following software releases have been updated to recover from private index space exhaustion: 17.3R3-S1 and all subsequent releases."
          }
        ],
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          "advisory": "JSA10899",
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        "work_around": [
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  },
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    "assignerShortName": "juniper",
    "cveId": "CVE-2018-0063",
    "datePublished": "2018-10-10T18:00:00.000Z",
    "dateReserved": "2017-11-16T00:00:00.000Z",
    "dateUpdated": "2024-09-16T18:29:25.424Z",
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}

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.

Action not permitted

VAR-201810-1465

CVE-2018-0063 (GCVE-0-2018-0063)

Tags

Sightings

Nomenclature