CVE-2023-53589 (GCVE-0-2023-53589)
Vulnerability from cvelistv5
Published
2025-10-04 15:44
Modified
2025-10-04 15:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: don't trust firmware n_channels If the firmware sends us a corrupted MCC response with n_channels much larger than the command response can be, we might copy far too much (uninitialized) memory and even crash if the n_channels is large enough to make it run out of the one page allocated for the FW response. Fix that by checking the lengths. Doing a < comparison would be sufficient, but the firmware should be doing it correctly, so check more strictly.
References
Impacted products
Vendor Product Version
Linux Linux Version: dcaf9f5ecb6f395152609bdc40660d9b593dca63
Version: dcaf9f5ecb6f395152609bdc40660d9b593dca63
Version: dcaf9f5ecb6f395152609bdc40660d9b593dca63
Version: dcaf9f5ecb6f395152609bdc40660d9b593dca63
Version: dcaf9f5ecb6f395152609bdc40660d9b593dca63
Version: dcaf9f5ecb6f395152609bdc40660d9b593dca63
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/intel/iwlwifi/mvm/nvm.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: don\u0027t trust firmware n_channels\n\nIf the firmware sends us a corrupted MCC response with\nn_channels much larger than the command response can be,\nwe might copy far too much (uninitialized) memory and\neven crash if the n_channels is large enough to make it\nrun out of the one page allocated for the FW response.\n\nFix that by checking the lengths. Doing a \u003c comparison\nwould be sufficient, but the firmware should be doing\nit correctly, so check more strictly."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-10-04T15:44:04.047Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/682b6dc29d98e857e6ca4bbc077c7dc2899b7473"
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      ],
      "title": "wifi: iwlwifi: mvm: don\u0027t trust firmware n_channels",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53589",
    "datePublished": "2025-10-04T15:44:04.047Z",
    "dateReserved": "2025-10-04T15:40:38.478Z",
    "dateUpdated": "2025-10-04T15:44:04.047Z",
    "state": "PUBLISHED"
  },
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  }
}


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