CVE-2022-22247 (GCVE-0-2022-22247)

Vulnerability from cvelistv5 – Published: 2022-10-18 02:46 – Updated: 2025-05-09 15:35
VLAI
Title
Junos OS Evolved: Kernel processing of unvalidated TCP segments could lead to a Denial of Service (DoS)
Summary
An Improper Input Validation vulnerability in ingress TCP segment processing of Juniper Networks Junos OS Evolved allows a network-based unauthenticated attacker to send a crafted TCP segment to the device, triggering a kernel panic, leading to a Denial of Service (DoS) condition. Continued receipt and processing of this TCP segment could create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS Evolved: 21.3 versions prior to 21.3R3-EVO; 21.4 versions prior to 21.4R2-EVO; 22.1 versions prior to 22.1R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 21.3R1-EVO.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-09 15:34 UTC
CWE
  • CWE-20 - Improper Input Validation
  • Denial of Service (DoS)
Assigner
juniper CNA under the mitre root
CNA scorecard B 84/100 over 193 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Juniper Networks Junos OS Evolved Unaffected: unspecified , < 21.3R1-EVO (custom)
Affected: 21.3-EVO , < 21.3R3-EVO (custom)
Affected: 21.4-EVO , < 21.4R2-EVO (custom)
Affected: 22.1-EVO , < 22.1R2-EVO (custom)
guessed Create a notification for this product.
Date Public
2022-10-12 00:00
Show details on NVD website
To clipboard 

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                  "status": "affected",
                  "version": "21.4-EVO",
                  "versionType": "custom"
                },
                {
                  "lessThan": "22.1R2-EVO",
                  "status": "affected",
                  "version": "22.1-EVO",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "datePublic": "2022-10-12T00:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "An Improper Input Validation vulnerability in ingress TCP segment processing of Juniper Networks Junos OS Evolved allows a network-based unauthenticated attacker to send a crafted TCP segment to the device, triggering a kernel panic, leading to a Denial of Service (DoS) condition. Continued receipt and processing of this TCP segment could create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS Evolved: 21.3 versions prior to 21.3R3-EVO; 21.4 versions prior to 21.4R2-EVO; 22.1 versions prior to 22.1R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 21.3R1-EVO."
            }
          ],
          "exploits": [
            {
              "lang": "en",
              "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-20",
                  "description": "CWE-20 Improper Input Validation",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "description": "Denial of Service (DoS)",
                  "lang": "en",
                  "type": "text"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2022-10-18T00:00:00.000Z",
            "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
            "shortName": "juniper"
          },
          "references": [
            {
              "url": "https://kb.juniper.net/JSA69904"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "value": "The following software releases have been updated to resolve this specific issue: Junos OS Evolved 21.3R3-EVO, 21.4R2-EVO, 22.1R2-EVO, 22.2R1-EVO, and all subsequent releases."
            }
          ],
          "source": {
            "advisory": "JSA69904",
            "defect": [
              "1643328",
              "1634134"
            ],
            "discovery": "INTERNAL"
          },
          "title": "Junos OS Evolved: Kernel processing of unvalidated TCP segments could lead to a Denial of Service (DoS)",
          "workarounds": [
            {
              "lang": "en",
              "value": "There are no viable workarounds for this issue."
            }
          ],
          "x_generator": {
            "engine": "Vulnogram 0.0.9"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "assignerShortName": "juniper",
        "cveId": "CVE-2022-22247",
        "datePublished": "2022-10-18T02:46:49.858Z",
        "dateReserved": "2021-12-21T00:00:00.000Z",
        "dateUpdated": "2025-05-09T15:35:08.609Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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

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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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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