CVE-2023-44193 (GCVE-0-2023-44193)
Vulnerability from cvelistv5
Published
2023-10-12 23:04
Modified
2024-09-17 16:10
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-401 - Improper Release of Memory Before Removing Last Reference
  • Denial of Service (DoS)
Summary
An Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS). On all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition. This issue affects: Juniper Networks Junos OS on MX Series: * All versions prior to 20.4R3-S7; * 21.1 versions prior to 21.1R3-S5; * 21.2 versions prior to 21.2R3-S4; * 21.3 versions prior to 21.3R3-S4; * 21.4 versions prior to 21.4R3-S3; * 22.1 versions prior to 22.1R3-S1; * 22.2 versions prior to 22.2R2-S1, 22.2R3; * 22.3 versions prior to 22.3R1-S2, 22.3R2.
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Version: 0   ≤
Version: 21.1   ≤
Version: 21.2   ≤
Version: 21.3   ≤
Version: 21.4   ≤
Version: 22.1   ≤
Version: 22.2   ≤
Version: 22.3   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T19:59:51.669Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://supportportal.juniper.net/JSA73157"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-44193",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-17T15:53:55.982862Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-17T16:10:44.571Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "MX Series"
          ],
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "20.4R3-S7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "21.1R3-S5",
              "status": "affected",
              "version": "21.1",
              "versionType": "semver"
            },
            {
              "lessThan": "21.2R3-S4",
              "status": "affected",
              "version": "21.2",
              "versionType": "semver"
            },
            {
              "lessThan": "21.3R3-S4",
              "status": "affected",
              "version": "21.3",
              "versionType": "semver"
            },
            {
              "lessThan": "21.4R3-S3",
              "status": "affected",
              "version": "21.4",
              "versionType": "semver"
            },
            {
              "lessThan": "22.1R3-S1",
              "status": "affected",
              "version": "22.1",
              "versionType": "semver"
            },
            {
              "lessThan": "22.2R2-S1, 22.2R3",
              "status": "affected",
              "version": "22.2",
              "versionType": "semver"
            },
            {
              "lessThan": "22.3R1-S2, 22.3R2",
              "status": "affected",
              "version": "22.3",
              "versionType": "semver"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\n\n\u003cp\u003eFor this issue to occur, following minimal configuration is required.\u003c/p\u003e\u003ccode\u003e[ ldp interface \u0026lt;interface1\u0026gt; ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ interfaces \u0026lt;interface1\u0026gt; flexible-vlan-tagging ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ interfaces \u0026lt;interface1\u0026gt; encapsulation vlan-vpls ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ protocols oam ethernet connectivity-fault-management maintenance-domain \u0026lt;md-name\u0026gt; interface \u0026lt;interface2\u0026gt; ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ routing-instances \u0026lt;md-name\u0026gt; instance-type vpls ]\u003c/code\u003e\u003cbr\u003e\u003ccode\u003e[ routing-instances \u0026lt;md-name\u0026gt; interface \u0026lt;interface1\u0026gt; ]\u003c/code\u003e\n\n"
            }
          ],
          "value": "\nFor this issue to occur, following minimal configuration is required.\n\n[ ldp interface \u003cinterface1\u003e ]\n[ interfaces \u003cinterface1\u003e flexible-vlan-tagging ]\n[ interfaces \u003cinterface1\u003e encapsulation vlan-vpls ]\n[ protocols oam ethernet connectivity-fault-management maintenance-domain \u003cmd-name\u003e interface \u003cinterface2\u003e ]\n[ routing-instances \u003cmd-name\u003e instance-type vpls ]\n[ routing-instances \u003cmd-name\u003e interface \u003cinterface1\u003e ]\n\n"
        }
      ],
      "datePublic": "2023-10-11T16:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\n\n\u003cp\u003eAn Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS).\u003c/p\u003e\u003cp\u003eOn all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition.\u003c/p\u003e\u003cp\u003eThis issue affects:\u003c/p\u003e\u003cp\u003eJuniper Networks Junos OS on MX Series:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions prior to 20.4R3-S7;\u003c/li\u003e\u003cli\u003e21.1 versions prior to 21.1R3-S5;\u003c/li\u003e\u003cli\u003e21.2 versions prior to 21.2R3-S4;\u003c/li\u003e\u003cli\u003e21.3 versions prior to 21.3R3-S4;\u003c/li\u003e\u003cli\u003e21.4 versions prior to 21.4R3-S3;\u003c/li\u003e\u003cli\u003e22.1 versions prior to 22.1R3-S1;\u003c/li\u003e\u003cli\u003e22.2 versions prior to 22.2R2-S1, 22.2R3;\u003c/li\u003e\u003cli\u003e22.3 versions prior to 22.3R1-S2, 22.3R2.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\n\n"
            }
          ],
          "value": "\nAn Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS).\n\nOn all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition.\n\nThis issue affects:\n\nJuniper Networks Junos OS on MX Series:\n\n\n\n  *  All versions prior to 20.4R3-S7;\n  *  21.1 versions prior to 21.1R3-S5;\n  *  21.2 versions prior to 21.2R3-S4;\n  *  21.3 versions prior to 21.3R3-S4;\n  *  21.4 versions prior to 21.4R3-S3;\n  *  22.1 versions prior to 22.1R3-S1;\n  *  22.2 versions prior to 22.2R2-S1, 22.2R3;\n  *  22.3 versions prior to 22.3R1-S2, 22.3R2.\n\n\n\n\n\n\n"
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eJuniper SIRT is not aware of any malicious exploitation of this vulnerability.\u003c/p\u003e"
            }
          ],
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n\n"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-401",
              "description": "CWE-401 Improper Release of Memory Before Removing Last Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "description": "Denial of Service (DoS)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-12T23:04:00.332Z",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://supportportal.juniper.net/JSA73157"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S7, 21.1R3-S5, 21.2R3-S4, 21.3R3-S4, 21.4R3-S3, 22.1R3-S1, 22.2R2-S1, 22.2R3, 22.3R1-S2, 22.3R2, 22.4R1, and all subsequent releases.\u003c/p\u003e"
            }
          ],
          "value": "The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S7, 21.1R3-S5, 21.2R3-S4, 21.3R3-S4, 21.4R3-S3, 22.1R3-S1, 22.2R2-S1, 22.2R3, 22.3R1-S2, 22.3R2, 22.4R1, and all subsequent releases.\n\n"
        }
      ],
      "source": {
        "advisory": "JSA73157",
        "defect": [
          "1668419"
        ],
        "discovery": "USER"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2023-10-11T16:00:00.000Z",
          "value": "Initial Publication"
        }
      ],
      "title": "Junos OS: MX Series: An FPC crash is observed when CFM is enabled in a VPLS scenario and a specific LDP related command is run",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThis issue can be avoided by disabling CFM MIP functionality.\u003c/p\u003e \u003ctt\u003e[ protocols oam ethernet connectivity-fault-management maintenance-domain mip-half-function none ]\u003c/tt\u003e"
            }
          ],
          "value": "This issue can be avoided by disabling CFM MIP functionality.\n\n [ protocols oam ethernet connectivity-fault-management maintenance-domain mip-half-function none ]"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.1.0-av217"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
    "assignerShortName": "juniper",
    "cveId": "CVE-2023-44193",
    "datePublished": "2023-10-12T23:04:00.332Z",
    "dateReserved": "2023-09-26T19:30:27.955Z",
    "dateUpdated": "2024-09-17T16:10:44.571Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.