ubuntu-cve-2019-17185
Vulnerability from osv_ubuntu
Published
2020-03-21 01:15
Modified
2026-04-22 07:39
Summary
Details

In FreeRADIUS 3.0.x before 3.0.20, the EAP-pwd module used a global OpenSSL BN_CTX instance to handle all handshakes. This mean multiple threads use the same BN_CTX instance concurrently, resulting in crashes when concurrent EAP-pwd handshakes are initiated. This can be abused by an adversary as a Denial-of-Service (DoS) attack.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "freeradius",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-common",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-config",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-dhcp",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-iodbc",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-krb5",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-ldap",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-memcached",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-mysql",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-postgresql",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-redis",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-rest",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-utils",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "freeradius-yubikey",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          },
          {
            "binary_name": "libfreeradius3",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "freeradius",
        "purl": "pkg:deb/ubuntu/freeradius@3.0.16+dfsg-1ubuntu3.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.16+dfsg-1ubuntu3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.15+dfsg-1ubuntu2",
        "3.0.16+dfsg-1ubuntu2",
        "3.0.16+dfsg-1ubuntu3",
        "3.0.16+dfsg-1ubuntu3.1"
      ]
    }
  ],
  "aliases": [],
  "details": "In FreeRADIUS 3.0.x before 3.0.20, the EAP-pwd module used a global OpenSSL BN_CTX instance to handle all handshakes. This mean multiple threads use the same BN_CTX instance concurrently, resulting in crashes when concurrent EAP-pwd handshakes are initiated. This can be abused by an adversary as a Denial-of-Service (DoS) attack.",
  "id": "UBUNTU-CVE-2019-17185",
  "modified": "2026-04-22T07:39:07Z",
  "published": "2020-03-21T01:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-17185"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeRADIUS/freeradius-server/commit/6b522f8780813726799e6b8cf0f1f8e0ce2c8ebf"
    },
    {
      "type": "REPORT",
      "url": "https://freeradius.org/security/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeRADIUS/freeradius-server/releases/tag/release_3_0_20"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5785-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-17185"
    }
  ],
  "related": [
    "USN-5785-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-17185"
  ]
}



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