{
  "id": "CVE-2023-52631",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-04-02T07:15:40.900",
  "lastModified": "2024-04-02T12:50:42.233",
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix an NULL dereference bug\n\nThe issue here is when this is called from ntfs_load_attr_list().  The\n\"size\" comes from le32_to_cpu(attr->res.data_size) so it can't overflow\non a 64bit systems but on 32bit systems the \"+ 1023\" can overflow and\nthe result is zero.  This means that the kmalloc will succeed by\nreturning the ZERO_SIZE_PTR and then the memcpy() will crash with an\nOops on the next line."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: fs/ntfs3: corrige un error de desreferencia NULL El problema aqu\u00ed es cuando se llama desde ntfs_load_attr_list(). El \"tama\u00f1o\" proviene de le32_to_cpu(attr->res.data_size), por lo que no puede desbordarse en sistemas de 64 bits, pero en sistemas de 32 bits el \"+ 1023\" puede desbordarse y el resultado es cero. Esto significa que kmalloc tendr\u00e1 \u00e9xito al devolver ZERO_SIZE_PTR y luego memcpy() fallar\u00e1 con un Ups en la siguiente l\u00ednea."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}