CVE-2026-23060
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than the minimum expected length, crypto_authenc_esn_decrypt() can advance past the end of the destination scatterlist and trigger a NULL pointer dereference in scatterwalk_map_and_copy(), leading to a kernel panic (DoS). Add a minimum AAD length check to fail fast on invalid inputs.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-02-04 17:16:16.687000
Last modified
2026-10-19 19:17:33.240000
View original CVE JSON
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-02-04T17:16:16.687",
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec\n\nauthencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than\nthe minimum expected length, crypto_authenc_esn_decrypt() can advance past\nthe end of the destination scatterlist and trigger a NULL pointer dereference\nin scatterwalk_map_and_copy(), leading to a kernel panic (DoS).\n\nAdd a minimum AAD length check to fail fast on invalid inputs."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ncrypto: authencesn - rechazar AAD demasiado corto (assoclen<8) para coincidir con la especificación ESP/ESN\n\nauthencesn asume un AAD con formato ESP/ESN. Cuando assoclen es más corto que la longitud mínima esperada, crypto_authenc_esn_decrypt() puede avanzar más allá del final de la scatterlist de destino y activar una desreferencia de puntero NULL en scatterwalk_map_and_copy(), lo que lleva a un pánico del kernel (DoS).\n\nAñadir una comprobación de longitud mínima de AAD para fallar rápidamente con entradas no válidas."
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