{
  "cveId": "CVE-2026-64361",
  "url": "https://patchblox.com/security/cve/CVE-2026-64361",
  "summary": "CVE-2026-64361 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-64361, released August 1, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  hfs/hfsplus: fix u32 overflow in check_and_corre...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length  check_and_correct_requested_length() compares (off \u002B len) against node_size using u32 arithmetic.  When the caller passes a large len value (e.g. from an underflowed subtraction in hfs_brec_remove()), off \u002B len can wrap past 2^32 and produce a small result, causing the bounds check to pass when it should fail.  For example, with off=14 and len=0xFFFFFFF2 (underflowed from data_off - keyoffset - size in hfs_brec_remove), off \u002B len wraps to 6, which is less than a typical node_size of 512, so the check passes and the subsequent memmove reads ~4GB past the node buffer.  Fix this by widening the addition to u64 before comparing against node_size.  This prevents the u32 wrap while keeping the logic straightforward.",
  "published": "2026-07-25T10:17:18Z",
  "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": 0.00129,
  "epssPercentile": 0.0258,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.180-1",
      "fix": "DEBIAN-CVE-2026-64361",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64361",
      "released": "2026-08-01T14:28:19Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.100-1",
      "fix": "DEBIAN-CVE-2026-64361",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64361",
      "released": "2026-08-01T14:28:19Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.4-1",
      "fix": "DEBIAN-CVE-2026-64361",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64361",
      "released": "2026-08-01T14:28:19Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.100-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-64361",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64361",
      "released": "2026-08-01T14:28:19Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}