CVE-2024-41090 (GCVE-0-2024-41090)

Vulnerability from cvelistv5 – Published: 2024-07-29 06:18 – Updated: 2026-05-11 20:26
VLAI
Title
tap: add missing verification for short frame
Summary
In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tap_get_user_xdp() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tap_get_user_xdp()-->skb_set_network_header() may assume the size is more than ETH_HLEN. Once transmitted, this could either cause out-of-bound access beyond the actual length, or confuse the underlayer with incorrect or inconsistent header length in the skb metadata. In the alternative path, tap_get_user() already prohibits short frame which has the length less than Ethernet header size from being transmitted. This is to drop any frame shorter than the Ethernet header size just like how tap_get_user() does. CVE: CVE-2024-41090
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < 8be915fc5ff9a5e296f6538be12ea75a1a93bdea (git)
Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < 7431144b406ae82807eb87d8c98e518475b0450f (git)
Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < e5e5e63c506b93b89b01f522b6a7343585f784e6 (git)
Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < ee93e6da30377cf2a75e16cd32bb9fcd86a61c46 (git)
Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < aa6a5704cab861c9b2ae9f475076e1881e87f5aa (git)
Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < 73d462a38d5f782b7c872fe9ae8393d9ef5483da (git)
Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < e1a786b9bbb767fd1c922d424aaa8078cc542309 (git)
Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < ed7f2afdd0e043a397677e597ced0830b83ba0b3 (git)
Create a notification for this product.
Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.4.281 , ≤ 5.4.* (semver)
Unaffected: 5.10.223 , ≤ 5.10.* (semver)
Unaffected: 5.15.164 , ≤ 5.15.* (semver)
Unaffected: 6.1.102 , ≤ 6.1.* (semver)
Unaffected: 6.6.43 , ≤ 6.6.* (semver)
Unaffected: 6.9.12 , ≤ 6.9.* (semver)
Unaffected: 6.10.2 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
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Once transmitted, this could either cause out-of-bound\\naccess beyond the actual length, or confuse the underlayer with incorrect\\nor inconsistent header length in the skb metadata.\\n\\nIn the alternative path, tap_get_user() already prohibits short frame which\\nhas the length less than Ethernet header size from being transmitted.\\n\\nThis is to drop any frame shorter than the Ethernet header size just like\\nhow tap_get_user() does.\\n\\nCVE: CVE-2024-41090\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: tap: agregar verificaci\u00f3n faltante para marco corto La confirmaci\u00f3n citada no pudo verificar la validez de la longitud del marco en la ruta tap_get_user_xdp(), lo que podr\u00eda causar que un skb corrupto se env\u00ede hacia abajo. Incluso antes de que se transmita el skb, tap_get_user_xdp()--\u0026gt;skb_set_network_header() puede asumir que el tama\u00f1o es mayor que ETH_HLEN. Una vez transmitido, esto podr\u00eda provocar un acceso fuera de los l\u00edmites m\u00e1s all\u00e1 de la longitud real o confundir la capa subyacente con una longitud de encabezado incorrecta o inconsistente en los metadatos de skb. En la ruta alternativa, tap_get_user() ya proh\u00edbe la transmisi\u00f3n de tramas cortas que tengan una longitud menor que el tama\u00f1o del encabezado Ethernet. Esto es para eliminar cualquier trama m\u00e1s corta que el tama\u00f1o del encabezado de Ethernet tal como lo hace tap_get_user(). 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      "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.