CVE-2023-36835 (GCVE-0-2023-36835)

Vulnerability from cvelistv5 – Published: 2023-07-14 17:11 – Updated: 2024-11-07 14:24
VLAI?
Title
Junos OS: QFX10000 Series: All traffic will be dropped after a specific valid IP packet has been received which needs to be routed over a VXLAN tunnel
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX10000 Series allows a network based attacker to cause a Denial of Service (DoS). If a specific valid IP packet is received and that packet needs to be routed over a VXLAN tunnel, this will result in a PFE wedge condition due to which traffic gets impacted. As this is not a crash and restart scenario, this condition will persist until the system is rebooted to recover. This issue affects Juniper Networks Junos OS on QFX10000: 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S5; 21.3 versions prior to 21.3R3-S4; 21.4 versions prior to 21.4R3-S1; 22.1 versions prior to 22.1R3; 22.2 versions prior to 22.2R2; 22.3 versions prior to 22.3R1-S2, 22.3R2.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
  • Denial of Service (DoS)
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 20.3 , < 20.3* (custom)
Affected: 20.4 , < 20.4R3-S5 (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-S1 (custom)
Affected: 22.1 , < 22.1R3 (custom)
Affected: 22.2 , < 22.2R2 (custom)
Affected: 22.3 , < 22.3R1-S2, 22.3R2 (custom)
Create a notification for this product.
Date Public ?
2023-07-12 16:00
Show details on NVD website
To clipboard 

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      "descriptions": "[{\"lang\": \"en\", \"value\": \"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX10000 Series allows a network based attacker to cause a Denial of Service (DoS).\\n\\nIf a specific valid IP packet is received and that packet needs to be routed over a VXLAN tunnel, this will result in a PFE wedge condition due to which traffic gets impacted. As this is not a crash and restart scenario, this condition will persist until the system is rebooted to recover.\\n\\nThis issue affects Juniper Networks Junos OS on QFX10000:\\n20.3 version 20.3R1 and later versions;\\n20.4 versions prior to 20.4R3-S5;\\n21.1 versions prior to 21.1R3-S5;\\n21.2 versions prior to 21.2R3-S5;\\n21.3 versions prior to 21.3R3-S4;\\n21.4 versions prior to 21.4R3-S1;\\n22.1 versions prior to 22.1R3;\\n22.2 versions prior to 22.2R2;\\n22.3 versions prior to 22.3R1-S2, 22.3R2.\\n\"}]",
      "id": "CVE-2023-36835",
      "lastModified": "2024-11-21T08:10:42.510",
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      "published": "2023-07-14T18:15:10.133",
      "references": "[{\"url\": \"https://supportportal.juniper.net/JSA71642\", \"source\": \"sirt@juniper.net\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://supportportal.juniper.net/JSA71642\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "sirt@juniper.net",
      "vulnStatus": "Modified",
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    },
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[{\"status\": \"affected\", \"changes\": [{\"at\": \"20.3R1\", \"status\": \"affected\"}], \"version\": \"20.3\", \"lessThan\": \"20.3*\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"20.4\", \"lessThan\": \"20.4R3-S5\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.1\", \"lessThan\": \"21.1R3-S5\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.2\", \"lessThan\": \"21.2R3-S5\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.3\", \"lessThan\": \"21.3R3-S4\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.4\", \"lessThan\": \"21.4R3-S1\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"22.1\", \"lessThan\": \"22.1R3\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"22.2\", \"lessThan\": \"22.2R2\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"22.3\", \"lessThan\": \"22.3R1-S2, 22.3R2\", \"versionType\": \"custom\"}], \"platforms\": [\"QFX10000 Series\"], \"defaultStatus\": \"unaffected\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\u003cbr\u003e\", \"base64\": false}]}], \"solutions\": [{\"lang\": \"en\", \"value\": \"The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S5, 21.1R3-S5, 21.2R3-S5, 21.3R3-S4, 21.4R3-S1, 22.1R3, 22.2R2, 22.3R1-S2, 22.3R2, 22.4R1, and all subsequent releases.\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S5, 21.1R3-S5, 21.2R3-S5, 21.3R3-S4, 21.4R3-S1, 22.1R3, 22.2R2, 22.3R1-S2, 22.3R2, 22.4R1, and all subsequent releases.\u003cbr\u003e\", \"base64\": false}]}], \"datePublic\": \"2023-07-12T16:00:00.000Z\", \"references\": [{\"url\": \"https://supportportal.juniper.net/JSA71642\"}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"There are no known workarounds for this issue.\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"There are no known workarounds for this issue.\u003cbr\u003e\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX10000 Series allows a network based attacker to cause a Denial of Service (DoS).\\n\\nIf a specific valid IP packet is received and that packet needs to be routed over a VXLAN tunnel, this will result in a PFE wedge condition due to which traffic gets impacted. As this is not a crash and restart scenario, this condition will persist until the system is rebooted to recover.\\n\\nThis issue affects Juniper Networks Junos OS on QFX10000:\\n20.3 version 20.3R1 and later versions;\\n20.4 versions prior to 20.4R3-S5;\\n21.1 versions prior to 21.1R3-S5;\\n21.2 versions prior to 21.2R3-S5;\\n21.3 versions prior to 21.3R3-S4;\\n21.4 versions prior to 21.4R3-S1;\\n22.1 versions prior to 22.1R3;\\n22.2 versions prior to 22.2R2;\\n22.3 versions prior to 22.3R1-S2, 22.3R2.\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX10000 Series allows a network based attacker to cause a Denial of Service (DoS).\u003cbr\u003e\u003cbr\u003eIf a specific valid IP packet is received and that packet needs to be routed over a VXLAN tunnel, this will result in a PFE wedge condition due to which traffic gets impacted. As this is not a crash and restart scenario, this condition will persist until the system is rebooted to recover.\u003cbr\u003e\u003cbr\u003eThis issue affects Juniper Networks Junos OS on QFX10000:\u003cbr\u003e20.3 version 20.3R1 and later versions;\u003cbr\u003e20.4 versions prior to 20.4R3-S5;\u003cbr\u003e21.1 versions prior to 21.1R3-S5;\u003cbr\u003e21.2 versions prior to 21.2R3-S5;\u003cbr\u003e21.3 versions prior to 21.3R3-S4;\u003cbr\u003e21.4 versions prior to 21.4R3-S1;\u003cbr\u003e22.1 versions prior to 22.1R3;\u003cbr\u003e22.2 versions prior to 22.2R2;\u003cbr\u003e22.3 versions prior to 22.3R1-S2, 22.3R2.\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-754\", \"description\": \"CWE-754 Improper Check for Unusual or Exceptional Conditions\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"description\": \"Denial of Service (DoS)\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"To be exposed to this issue the QFX device needs be configured for VXLAN with either of the following statements:\\n\\n\\u00a0 [ vlans \u003cvlan\u003e vxlan ]\\n\\n\\u00a0 [ routing-instances \u003crouting-instance\u003e vxlan ]\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"To be exposed to this issue the QFX device needs be configured for VXLAN with either of the following statements:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e\u0026nbsp; [ vlans \u0026lt;vlan\u0026gt; vxlan ]\u003cbr\u003e\u003cbr\u003e\u0026nbsp; [ routing-instances \u0026lt;routing-instance\u0026gt; vxlan ]\u003c/tt\u003e\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2023-07-14T17:11:26.454Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-36835\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-07T14:24:52.880Z\", \"dateReserved\": \"2023-06-27T16:17:25.276Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2023-07-14T17:11:26.454Z\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Taxonomy of the tags.




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.