{
  "cveId": "CVE-2023-52852",
  "url": "https://patchblox.com/security/cve/CVE-2023-52852",
  "summary": "CVE-2023-52852 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52852, released May 21, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  f2fs: compress: fix to avoid use-after-free on d...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  f2fs: compress: fix to avoid use-after-free on dic  Call trace:  __memcpy\u002B0x128/0x250  f2fs_read_multi_pages\u002B0x940/0xf7c  f2fs_mpage_readpages\u002B0x5a8/0x624  f2fs_readahead\u002B0x5c/0x110  page_cache_ra_unbounded\u002B0x1b8/0x590  do_sync_mmap_readahead\u002B0x1dc/0x2e4  filemap_fault\u002B0x254/0xa8c  f2fs_filemap_fault\u002B0x2c/0x104  __do_fault\u002B0x7c/0x238  do_handle_mm_fault\u002B0x11bc/0x2d14  do_mem_abort\u002B0x3a8/0x1004  el0_da\u002B0x3c/0xa0  el0t_64_sync_handler\u002B0xc4/0xec  el0t_64_sync\u002B0x1b4/0x1b8  In f2fs_read_multi_pages(), once f2fs_decompress_cluster() was called if we hit cached page in compress_inode\u0027s cache, dic may be released, it needs break the loop rather than continuing it, in order to avoid accessing invalid dic pointer.",
  "published": "2024-05-21T16:15:22Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0024,
  "epssPercentile": 0.15199,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.64-1",
      "fix": "DEBIAN-CVE-2023-52852",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52852",
      "released": "2024-05-21T16:15:22Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.6.8-1",
      "fix": "DEBIAN-CVE-2023-52852",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52852",
      "released": "2024-05-21T16:15:22Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.6.8-1",
      "fix": "DEBIAN-CVE-2023-52852",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52852",
      "released": "2024-05-21T16:15:22Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}