{
  "id": "CVE-2024-53179",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-12-27T14:15:25.307",
  "lastModified": "2025-02-10T18:15:27.533",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix use-after-free of signing key\n\nCustomers have reported use-after-free in @ses->auth_key.response with\nSMB2.1 + sign mounts which occurs due to following race:\n\ntask A                         task B\ncifs_mount()\n dfs_mount_share()\n  get_session()\n   cifs_mount_get_session()    cifs_send_recv()\n    cifs_get_smb_ses()          compound_send_recv()\n     cifs_setup_session()        smb2_setup_request()\n      kfree_sensitive()           smb2_calc_signature()\n                                   crypto_shash_setkey() *UAF*\n\nFix this by ensuring that we have a valid @ses->auth_key.response by\nchecking whether @ses->ses_status is SES_GOOD or SES_EXITING with\n@ses->ses_lock held.  After commit 24a9799aa8ef (\"smb: client: fix UAF\nin smb2_reconnect_server()\"), we made sure to call ->logoff() only\nwhen @ses was known to be good (e.g. valid ->auth_key.response), so\nit's safe to access signing key when @ses->ses_status == SES_EXITING."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: se corrige el use-after-free de la clave de firma Los clientes han informado sobre el use-after-free en @ses->auth_key.response con SMB2.1 + montajes de firma que se producen debido a la siguiente ejecuci\u00f3n: tarea A tarea B cifs_mount() dfs_mount_share() get_session() cifs_mount_get_session() cifs_send_recv() cifs_get_smb_ses() Compound_send_recv() cifs_setup_session() smb2_setup_request() kfree_sensitive() smb2_calc_signature() crypto_shash_setkey() *UAF* Solucione esto asegur\u00e1ndose de que tenemos un @ses->auth_key.response v\u00e1lido comprobando si @ses->ses_status es SES_GOOD o SES_EXITING con @ses->ses_lock Despu\u00e9s de el commit 24a9799aa8ef (\"smb: cliente: corregir UAF en smb2_reconnect_server()\"), nos aseguramos de llamar a ->logoff() solo cuando se sab\u00eda que @ses era correcto (por ejemplo, ->auth_key.response v\u00e1lido), por lo que es seguro acceder a la clave de firma cuando @ses->ses_status == SES_EXITING."
    }
  ],
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          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.8,
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