FKIE_CVE-2024-6437
Vulnerability from fkie_nvd - Published: 2025-01-10 20:15 - Updated: 2026-06-17 08:18
Severity
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
Impacted products
| Vendor | Product | Version |
|---|
{
"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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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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