fkie_cve-2023-52852
Vulnerability from fkie_nvd
Published
2024-05-21 16:15
Modified
2024-12-30 20:09
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to avoid use-after-free on dic Call trace: __memcpy+0x128/0x250 f2fs_read_multi_pages+0x940/0xf7c f2fs_mpage_readpages+0x5a8/0x624 f2fs_readahead+0x5c/0x110 page_cache_ra_unbounded+0x1b8/0x590 do_sync_mmap_readahead+0x1dc/0x2e4 filemap_fault+0x254/0xa8c f2fs_filemap_fault+0x2c/0x104 __do_fault+0x7c/0x238 do_handle_mm_fault+0x11bc/0x2d14 do_mem_abort+0x3a8/0x1004 el0_da+0x3c/0xa0 el0t_64_sync_handler+0xc4/0xec el0t_64_sync+0x1b4/0x1b8 In f2fs_read_multi_pages(), once f2fs_decompress_cluster() was called if we hit cached page in compress_inode's cache, dic may be released, it needs break the loop rather than continuing it, in order to avoid accessing invalid dic pointer.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8c4504cc0c64862740a6acb301e0cfa59580dbc5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/932ddb5c29e884cc6fac20417ece72ba4a35c401Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9375ea7f269093d7c884857ae1f47633a91f429cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d065aa52b6ee1b06f9c4eca881c9b4425a12ba2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b0327c84e91a0f4f0abced8cb83ec86a7083f086Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8c4504cc0c64862740a6acb301e0cfa59580dbc5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/932ddb5c29e884cc6fac20417ece72ba4a35c401Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9375ea7f269093d7c884857ae1f47633a91f429cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9d065aa52b6ee1b06f9c4eca881c9b4425a12ba2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b0327c84e91a0f4f0abced8cb83ec86a7083f086Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "5.15.139",
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: compress: fix to avoid use-after-free on dic\n\nCall trace:\n __memcpy+0x128/0x250\n f2fs_read_multi_pages+0x940/0xf7c\n f2fs_mpage_readpages+0x5a8/0x624\n f2fs_readahead+0x5c/0x110\n page_cache_ra_unbounded+0x1b8/0x590\n do_sync_mmap_readahead+0x1dc/0x2e4\n filemap_fault+0x254/0xa8c\n f2fs_filemap_fault+0x2c/0x104\n __do_fault+0x7c/0x238\n do_handle_mm_fault+0x11bc/0x2d14\n do_mem_abort+0x3a8/0x1004\n el0_da+0x3c/0xa0\n el0t_64_sync_handler+0xc4/0xec\n el0t_64_sync+0x1b4/0x1b8\n\nIn f2fs_read_multi_pages(), once f2fs_decompress_cluster() was called if\nwe hit cached page in compress_inode\u0027s cache, dic may be released, it needs\nbreak the loop rather than continuing it, in order to avoid accessing\ninvalid dic pointer."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: compress: correcci\u00f3n para evitar el use after free en dic. Rastreo de llamadas: __memcpy+0x128/0x250 f2fs_read_multi_pages+0x940/0xf7c f2fs_mpage_readpages+0x5a8/0x624 f2fs_readahead+0x5c/0x110 page_cache_ra_ ilimitado +0x1b8/0x590 do_sync_mmap_readahead+0x1dc/0x2e4 filemap_fault+0x254/0xa8c f2fs_filemap_fault+0x2c/0x104 __do_fault+0x7c/0x238 do_handle_mm_fault+0x11bc/0x2d14 do_mem_abort+0x3a8 /0x1004 el0_da+0x3c/0xa0 el0t_64_sync_handler+0xc4/0xec el0t_64_sync+0x1b4/0x1b8 En f2fs_read_multi_pages(), una vez que se llam\u00f3 a f2fs_decompress_cluster() si llegamos a la p\u00e1gina almacenada en cach\u00e9 en el cach\u00e9 de compress_inode, es posible que se libere dic, es necesario romper el ciclo en lugar de continuarlo, para evitar acceder a un puntero dic no v\u00e1lido."
    }
  ],
  "id": "CVE-2023-52852",
  "lastModified": "2024-12-30T20:09:19.563",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-05-21T16:15:22.227",
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  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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