CVE-2023-36848 (GCVE-0-2023-36848)

Vulnerability from cvelistv5 – Published: 2023-07-14 17:52 – Updated: 2024-10-22 14:19
VLAI?
Title
Junos OS: MX Series: The FPC will crash on receiving a malformed CFM packet
Summary
An Improper Handling of Undefined Values vulnerability in the periodic packet management daemon (PPMD) of Juniper Networks Junos OS on MX Series(except MPC10, MPC11 and LC9600) allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). When a malformed CFM packet is received, it leads to an FPC crash. Continued receipt of these packets causes a sustained denial of service. This vulnerability occurs only when CFM has been configured on the interface. This issue affects Juniper Networks Junos OS: versions prior to 19.1R3-S10 on MX Series; 19.2 versions prior to 19.2R3-S7 on MX Series; 19.3 versions prior to 19.3R3-S8 on MX Series; 19.4 versions prior to 19.4R3-S12 on MX Series; 20.1 version 20.1R1 and later versions on MX Series; 20.2 versions prior to 20.2R3-S8 on MX Series; 20.3 version 20.3R1 and later versions on MX Series; 20.4 versions prior to 20.4R3-S7 on MX Series; 21.1 versions prior to 21.1R3-S5 on MX Series; 21.2 versions prior to 21.2R3-S5 on MX Series; 21.3 versions prior to 21.3R3-S4 on MX Series; 21.4 versions prior to 21.4R3-S4 on MX Series; 22.1 versions prior to 22.1R3-S3 on MX Series; 22.2 versions prior to 22.2R3-S1 on MX Series; 22.3 versions prior to 22.3R3 on MX Series; 22.4 versions prior to 22.4R1-S2, 22.4R2 on MX Series.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-232 - Improper Handling of Undefined Values
  • Denial of Service (DoS)
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: unspecified , < 19.1R3-S10 (custom)
Affected: 19.2 , < 19.2R3-S7 (custom)
Affected: 19.3 , < 19.3R3-S8 (custom)
Affected: 19.4 , < 19.4R3-S12 (custom)
Affected: 20.1 , < 20.1* (custom)
Affected: 20.2 , < 20.2R3-S8 (custom)
Affected: 20.3 , < 20.3* (custom)
Affected: 20.4 , < 20.4R3-S7 (custom)
Affected: 21.1 , < 21.1R3-S5 (custom)
Affected: 21.2 , < 21.2R3-S5 (custom)
Affected: 21.3 , < 21.3R3-S4 (custom)
Affected: 21.4 , < 21.4R3-S4 (custom)
Affected: 22.1 , < 22.1R3-S3 (custom)
Affected: 22.2 , < 22.2R3-S1 (custom)
Affected: 22.3 , < 22.3R3 (custom)
Affected: 22.4 , < 22.4R1-S2, 22.4R2 (custom)
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Continued receipt of these packets causes a sustained denial of service. This vulnerability occurs only when CFM has been configured on the interface.\u003cbr\u003e\u003cbr\u003eThis issue affects Juniper Networks Junos OS:\u003cbr\u003eversions prior to 19.1R3-S10 on MX Series;\u003cbr\u003e19.2 versions prior to 19.2R3-S7 on MX Series;\u003cbr\u003e19.3 versions prior to 19.3R3-S8 on MX Series;\u003cbr\u003e19.4 versions prior to 19.4R3-S12 on MX Series;\u003cbr\u003e20.1 version 20.1R1 and later versions on MX Series;\u003cbr\u003e20.2 versions prior to 20.2R3-S8 on MX Series;\u003cbr\u003e20.3 version 20.3R1 and later versions on MX Series;\u003cbr\u003e20.4 versions prior to 20.4R3-S7  on MX Series;\u003cbr\u003e21.1 versions prior to 21.1R3-S5 on MX Series;\u003cbr\u003e21.2 versions prior to 21.2R3-S5 on MX Series;\u003cbr\u003e21.3 versions prior to 21.3R3-S4 on MX Series;\u003cbr\u003e21.4 versions prior to 21.4R3-S4 on MX Series;\u003cbr\u003e22.1 versions prior to 22.1R3-S3 on MX Series;\u003cbr\u003e22.2 versions prior to 22.2R3-S1 on MX Series;\u003cbr\u003e22.3 versions prior to 22.3R3 on MX Series;\u003cbr\u003e22.4 versions prior to 22.4R1-S2, 22.4R2 on MX Series.\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-232\", \"description\": \"CWE-232 Improper Handling of Undefined Values\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"description\": \"Denial of Service (DoS)\"}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2023-07-14T17:52:37.019Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-36848\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-10-22T14:19:00.639Z\", \"dateReserved\": \"2023-06-27T16:17:25.277Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2023-07-14T17:52:37.019Z\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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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.



Detection rules are retrieved from Rulezet.