FKIE_CVE-2025-38608

Vulnerability from fkie_nvd - Published: 2025-08-19 17:15 - Updated: 2025-11-03 18:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls When sending plaintext data, we initially calculated the corresponding ciphertext length. However, if we later reduced the plaintext data length via socket policy, we failed to recalculate the ciphertext length. This results in transmitting buffers containing uninitialized data during ciphertext transmission. This causes uninitialized bytes to be appended after a complete "Application Data" packet, leading to errors on the receiving end when parsing TLS record.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0e853c1464bcf61207f8b5c32d2ac5ee495e859d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/16aca8bb4ad0d8a13c8b6da4007f4e52d53035bb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/178f6a5c8cb3b6be1602de0964cd440243f493c9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1e480387d4b42776f8957fb148af9d75ce93b96d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ba20ff3cdb96a908b9dc93cf247d0b087672e7c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73fc5d04009d3969ff8e8574f0fd769f04124e59
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/849d24dc5aed45ebeb3490df429356739256ac40
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/90d6ef67440cec2a0aad71a0108c8f216437345c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ee03766d79de0f61ea29ffb6ab1c7b196ea1b02e
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls\n\nWhen sending plaintext data, we initially calculated the corresponding\nciphertext length. However, if we later reduced the plaintext data length\nvia socket policy, we failed to recalculate the ciphertext length.\n\nThis results in transmitting buffers containing uninitialized data during\nciphertext transmission.\n\nThis causes uninitialized bytes to be appended after a complete\n\"Application Data\" packet, leading to errors on the receiving end when\nparsing TLS record."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf, ktls: Se corrige la corrupci\u00f3n de datos al usar bpf_msg_pop_data() en ktls. Al enviar datos de texto plano, inicialmente se calculaba la longitud del texto cifrado correspondiente. Sin embargo, si posteriormente se reduc\u00eda la longitud de los datos de texto plano mediante la pol\u00edtica de socket, no se pod\u00eda recalcular la longitud del texto cifrado. Esto provoca que se transmitan b\u00faferes con datos sin inicializar durante la transmisi\u00f3n del texto cifrado. Esto provoca que se a\u00f1adan bytes sin inicializar despu\u00e9s de un paquete completo de \"Datos de Aplicaci\u00f3n\", lo que genera errores en el receptor al analizar el registro TLS."
    }
  ],
  "id": "CVE-2025-38608",
  "lastModified": "2025-11-03T18:16:31.293",
  "metrics": {},
  "published": "2025-08-19T17:15:39.203",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0e853c1464bcf61207f8b5c32d2ac5ee495e859d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/16aca8bb4ad0d8a13c8b6da4007f4e52d53035bb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/178f6a5c8cb3b6be1602de0964cd440243f493c9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1e480387d4b42776f8957fb148af9d75ce93b96d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6ba20ff3cdb96a908b9dc93cf247d0b087672e7c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/73fc5d04009d3969ff8e8574f0fd769f04124e59"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/849d24dc5aed45ebeb3490df429356739256ac40"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/90d6ef67440cec2a0aad71a0108c8f216437345c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ee03766d79de0f61ea29ffb6ab1c7b196ea1b02e"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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