{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.14.8"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "9.0"
              }
            ]
          }
        ]
      }
    }
  ],
  "details": "kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allows local users to obtain potentially sensitive address information, aka a \"pointer leak.\"",
  "id": "CVE-2017-17864",
  "modified": "2026-03-14T13:49:04.942012346Z",
  "published": "2017-12-27T17:08:20.560Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://www.securityfocus.com/bid/102320"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.securitytracker.com/id/1040059"
    },
    {
      "type": "ADVISORY",
      "url": "https://anonscm.debian.org/cgit/kernel/linux.git/commit/?h=stretch-security\u0026id=ad775f6ff7eebb93eedc2f592bc974260e7757b0"
    },
    {
      "type": "ADVISORY",
      "url": "https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-verifier-fix-states_equal-comparison-of-pointer-and-unknown.patch?h=stretch-security"
    },
    {
      "type": "ADVISORY",
      "url": "https://usn.ubuntu.com/usn/usn-3523-2/"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.debian.org/security/2017/dsa-4073"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}