fkie_cve-2024-35962
Vulnerability from fkie_nvd
Published
2024-05-20 10:15
Modified
2024-11-21 09:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: complete validation of user input In my recent commit, I missed that do_replace() handlers use copy_from_sockptr() (which I fixed), followed by unsafe copy_from_sockptr_offset() calls. In all functions, we can perform the @optlen validation before even calling xt_alloc_table_info() with the following check: if ((u64)optlen < (u64)tmp.size + sizeof(tmp)) return -EINVAL;
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/562b7245131f6e9f1d280c8b5a8750f03edfc05c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/65acf6e0501ac8880a4f73980d01b5d27648b956
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89242d9584c342cb83311b598d9e6b82572eadf8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/97dab36e57c64106e1c8ebd66cbf0d2d1e52d6b7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c760089aa98289b4b88a7ff5a62dd92845adf223
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf4bc359b76144a3dd55d7c09464ef4c5f2b2b05
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/562b7245131f6e9f1d280c8b5a8750f03edfc05c
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/65acf6e0501ac8880a4f73980d01b5d27648b956
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/89242d9584c342cb83311b598d9e6b82572eadf8
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/97dab36e57c64106e1c8ebd66cbf0d2d1e52d6b7
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c760089aa98289b4b88a7ff5a62dd92845adf223
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cf4bc359b76144a3dd55d7c09464ef4c5f2b2b05
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: complete validation of user input\n\nIn my recent commit, I missed that do_replace() handlers\nuse copy_from_sockptr() (which I fixed), followed\nby unsafe copy_from_sockptr_offset() calls.\n\nIn all functions, we can perform the @optlen validation\nbefore even calling xt_alloc_table_info() with the following\ncheck:\n\nif ((u64)optlen \u003c (u64)tmp.size + sizeof(tmp))\n        return -EINVAL;"
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: validaci\u00f3n completa de la entrada del usuario En mi confirmaci\u00f3n reciente, omit\u00ed que los controladores do_replace() usan copy_from_sockptr() (que arregl\u00e9), seguido de llamadas inseguras copy_from_sockptr_offset(). En todas las funciones, podemos realizar la validaci\u00f3n @optlen incluso antes de llamar a xt_alloc_table_info() con la siguiente comprobaci\u00f3n: if ((u64)optlen \u0026lt; (u64)tmp.size + sizeof(tmp)) return -EINVAL;"
    }
  ],
  "id": "CVE-2024-35962",
  "lastModified": "2024-11-21T09:21:18.400",
  "metrics": {},
  "published": "2024-05-20T10:15:11.327",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/562b7245131f6e9f1d280c8b5a8750f03edfc05c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/65acf6e0501ac8880a4f73980d01b5d27648b956"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/89242d9584c342cb83311b598d9e6b82572eadf8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/97dab36e57c64106e1c8ebd66cbf0d2d1e52d6b7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c760089aa98289b4b88a7ff5a62dd92845adf223"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cf4bc359b76144a3dd55d7c09464ef4c5f2b2b05"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/562b7245131f6e9f1d280c8b5a8750f03edfc05c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/65acf6e0501ac8880a4f73980d01b5d27648b956"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/89242d9584c342cb83311b598d9e6b82572eadf8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/97dab36e57c64106e1c8ebd66cbf0d2d1e52d6b7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/c760089aa98289b4b88a7ff5a62dd92845adf223"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/cf4bc359b76144a3dd55d7c09464ef4c5f2b2b05"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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