ubuntu-cve-2019-16275
Vulnerability from osv_ubuntu
Published
2019-09-13 00:00
Modified
2025-10-14 16:48
Summary
Details

hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range. An attacker in radio range of the access point could inject a specially constructed unauthenticated IEEE 802.11 frame to the access point to cause associated stations to be disconnected and require a reconnection to the network.

Severity
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "hostapd",
            "binary_version": "1:2.1-0ubuntu1.7+esm2"
          },
          {
            "binary_name": "wpagui",
            "binary_version": "2.1-0ubuntu1.7+esm2"
          },
          {
            "binary_name": "wpasupplicant",
            "binary_version": "2.1-0ubuntu1.7+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "wpa",
        "purl": "pkg:deb/ubuntu/wpa@2.1-0ubuntu1.7+esm2?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1-0ubuntu1.7+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0-3ubuntu2",
        "1.0-3ubuntu3",
        "1.0-3ubuntu4",
        "2.1-0ubuntu1",
        "2.1-0ubuntu1.1",
        "2.1-0ubuntu1.2",
        "2.1-0ubuntu1.3",
        "2.1-0ubuntu1.4",
        "2.1-0ubuntu1.5",
        "2.1-0ubuntu1.6",
        "2.1-0ubuntu1.7",
        "2.1-0ubuntu1.7+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "hostapd",
            "binary_version": "1:2.4-0ubuntu6.6"
          },
          {
            "binary_name": "wpagui",
            "binary_version": "2.4-0ubuntu6.6"
          },
          {
            "binary_name": "wpasupplicant",
            "binary_version": "2.4-0ubuntu6.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "wpa",
        "purl": "pkg:deb/ubuntu/wpa@2.4-0ubuntu6.6?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4-0ubuntu6.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4-0ubuntu3",
        "2.4-0ubuntu4",
        "2.4-0ubuntu5",
        "2.4-0ubuntu6",
        "2.4-0ubuntu6.2",
        "2.4-0ubuntu6.3",
        "2.4-0ubuntu6.4",
        "2.4-0ubuntu6.5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "hostapd",
            "binary_version": "2:2.6-15ubuntu2.5"
          },
          {
            "binary_name": "wpagui",
            "binary_version": "2:2.6-15ubuntu2.5"
          },
          {
            "binary_name": "wpasupplicant",
            "binary_version": "2:2.6-15ubuntu2.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "wpa",
        "purl": "pkg:deb/ubuntu/wpa@2:2.6-15ubuntu2.5?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:2.6-15ubuntu2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4-0ubuntu10",
        "2:2.4-1.1ubuntu1",
        "2:2.6-15ubuntu1",
        "2:2.6-15ubuntu2",
        "2:2.6-15ubuntu2.1",
        "2:2.6-15ubuntu2.2",
        "2:2.6-15ubuntu2.3",
        "2:2.6-15ubuntu2.4"
      ]
    }
  ],
  "aliases": [],
  "details": "hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range. An attacker in radio range of the access point could inject a specially constructed unauthenticated IEEE 802.11 frame to the access point to cause associated stations to be disconnected and require a reconnection to the network.",
  "id": "UBUNTU-CVE-2019-16275",
  "modified": "2025-10-14T16:48:53Z",
  "published": "2019-09-13T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-16275"
    },
    {
      "type": "REPORT",
      "url": "https://w1.fi/security/2019-7/ap-mode-pmf-disconnection-protection-bypass.txt"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2019/09/11/7"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4136-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4136-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-16275"
    }
  ],
  "related": [
    "USN-4136-1",
    "USN-4136-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-16275"
  ]
}



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