FKIE_CVE-2024-6437

Vulnerability from fkie_nvd - Published: 2025-01-10 20:15 - Updated: 2026-06-17 08:18
Severity
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Summary
On affected platforms running Arista EOS with one of the following features configured to redirect IP traffic to a next hop: policy-based routing (PBR), BGP Flowspec, or interface traffic policy -- certain IP traffic such as IPv4 packets with IP options may bypass the feature's set nexthop action and be slow-path forwarded (FIB routed) by the kernel as the packets are trapped to the CPU instead of following the redirect action's destination.
References
psirt@arista.comhttps://www.arista.com/en/support/advisories-notices/security-advisory/20689-security-advisory-0108
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "EOS-Policy Based Routing (PBR)",
          "vendor": "Arista Networks",
          "versions": [
            {
              "lessThanOrEqual": "4.32.1F",
              "status": "affected",
              "version": "4.32.0F",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.31.4M",
              "status": "affected",
              "version": "4.31.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.30.7M",
              "status": "affected",
              "version": "4.30.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.29.9M",
              "status": "affected",
              "version": "4.29.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.28.11M",
              "status": "affected",
              "version": "4.28.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.27.12M",
              "status": "affected",
              "version": "4.27.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.26.14M",
              "status": "affected",
              "version": "4.26.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.25.11M",
              "status": "affected",
              "version": "4.25.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.24.11M",
              "status": "affected",
              "version": "4.24.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.23.15M",
              "status": "affected",
              "version": "4.23.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.22.13M",
              "status": "affected",
              "version": "4.22.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.21.15M",
              "status": "affected",
              "version": "4.21.0M",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "EOS - BGP Flowspec",
          "vendor": "Arista Networks",
          "versions": [
            {
              "lessThanOrEqual": "4.32.1F",
              "status": "affected",
              "version": "4.32.0F",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.31.4M",
              "status": "affected",
              "version": "4.31.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.30.7M",
              "status": "affected",
              "version": "4.30.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.29.9M",
              "status": "affected",
              "version": "4.29.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.28.11M",
              "status": "affected",
              "version": "4.28.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.27.12M",
              "status": "affected",
              "version": "4.27.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.26.14M",
              "status": "affected",
              "version": "4.26.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.25.11M",
              "status": "affected",
              "version": "4.25.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.24.11M",
              "status": "affected",
              "version": "4.24.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.23.15M",
              "status": "affected",
              "version": "4.23.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.22.13M",
              "status": "affected",
              "version": "4.22.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.21.15M",
              "status": "affected",
              "version": "4.21.3F",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "EOS - Interface Traffic Policy",
          "vendor": "Arista Networks",
          "versions": [
            {
              "lessThanOrEqual": "4.32.1F",
              "status": "affected",
              "version": "4.32.0F",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.31.4M",
              "status": "affected",
              "version": "4.31.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.30.7M",
              "status": "affected",
              "version": "4.30.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.29.9M",
              "status": "affected",
              "version": "4.29.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.28.11M",
              "status": "affected",
              "version": "4.28.0M",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.27.12F",
              "status": "affected",
              "version": "4.27.2F",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "psirt@arista.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "On affected platforms running Arista EOS with one of the following features configured to redirect IP traffic to a next hop: policy-based routing (PBR), BGP Flowspec, or interface traffic policy -- certain IP traffic such as IPv4 packets with IP options may bypass the feature\u0027s set nexthop\u00a0action and be slow-path forwarded (FIB routed) by the kernel as the packets are trapped to the CPU instead of following the redirect action\u0027s destination."
    },
    {
      "lang": "es",
      "value": "En las plataformas afectadas que ejecutan Arista EOS con una de las siguientes funciones configuradas para redirigir el tr\u00e1fico IP a un siguiente salto: enrutamiento basado en pol\u00edticas (PBR), BGP Flowspec o pol\u00edtica de tr\u00e1fico de interfaz, cierto tr\u00e1fico IP, como los paquetes IPv4 con opciones IP, pueden omitir la acci\u00f3n de siguiente salto establecida por la funci\u00f3n y ser reenviados por ruta lenta (enrutados FIB) por el kernel a medida que los paquetes quedan atrapados en la CPU en lugar de seguir el destino de la acci\u00f3n de redirecci\u00f3n."
    }
  ],
  "id": "CVE-2024-6437",
  "lastModified": "2026-06-17T08:18:00.737",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "psirt@arista.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-6437",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-01-10T21:12:08.840985Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-01-10T20:15:30.817",
  "references": [
    {
      "source": "psirt@arista.com",
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/20689-security-advisory-0108"
    }
  ],
  "sourceIdentifier": "psirt@arista.com",
  "vulnStatus": "Deferred"
}



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