FKIE_CVE-2025-21927

Vulnerability from fkie_nvd - Published: 2025-04-01 16:15 - Updated: 2025-10-01 20:18
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu() nvme_tcp_recv_pdu() doesn't check the validity of the header length. When header digests are enabled, a target might send a packet with an invalid header length (e.g. 255), causing nvme_tcp_verify_hdgst() to access memory outside the allocated area and cause memory corruptions by overwriting it with the calculated digest. Fix this by rejecting packets with an unexpected header length.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9fbc953d6b38bc824392e01850f0aeee3b348722Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad95bab0cd28ed77c2c0d0b6e76e03e031391064Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()\n\nnvme_tcp_recv_pdu() doesn\u0027t check the validity of the header length.\nWhen header digests are enabled, a target might send a packet with an\ninvalid header length (e.g. 255), causing nvme_tcp_verify_hdgst()\nto access memory outside the allocated area and cause memory corruptions\nby overwriting it with the calculated digest.\n\nFix this by rejecting packets with an unexpected header length."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvme-tcp: se corrige una posible corrupci\u00f3n de memoria en nvme_tcp_recv_pdu(). nvme_tcp_recv_pdu() no comprueba la validez de la longitud del encabezado. Cuando se habilitan los res\u00famenes de encabezado, un destino podr\u00eda enviar un paquete con una longitud de encabezado no v\u00e1lida (p. ej., 255), lo que provoca que nvme_tcp_verify_hdgst() acceda a memoria fuera del \u00e1rea asignada y provoque corrupciones de memoria al sobrescribirla con el resumen calculado. Para solucionar esto, rechace los paquetes con una longitud de encabezado inesperada."
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  "id": "CVE-2025-21927",
  "lastModified": "2025-10-01T20:18:33.740",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.