UBUNTU-CVE-2020-3812 (CVE-2020-3812)

Vulnerability from osv_ubuntu – Published: 2020-05-26 13:15 – Updated: 2025-07-16 04:55 – Source website
VLAI
Details

qmail-verify as used in netqmail 1.06 is prone to an information disclosure vulnerability. A local attacker can test for the existence of files and directories anywhere in the filesystem because qmail-verify runs as root and tests for the existence of files in the attacker's home directory, without dropping its privileges first.


{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "qmail",
            "binary_version": "1.06-6.2~deb10u1build0.14.04.1+esm1"
          },
          {
            "binary_name": "qmail-uids-gids",
            "binary_version": "1.06-6.2~deb10u1build0.14.04.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "netqmail",
        "purl": "pkg:deb/ubuntu/netqmail@1.06-6.2~deb10u1build0.14.04.1+esm1?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.06-6.2~deb10u1build0.14.04.1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.06-5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "qmail",
            "binary_version": "1.06-6.2~deb10u1build0.16.04.1"
          },
          {
            "binary_name": "qmail-uids-gids",
            "binary_version": "1.06-6.2~deb10u1build0.16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "netqmail",
        "purl": "pkg:deb/ubuntu/netqmail@1.06-6.2~deb10u1build0.16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.06-6.2~deb10u1build0.16.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.06-5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "qmail",
            "binary_version": "1.06-6.2~deb10u1build0.18.04.1"
          },
          {
            "binary_name": "qmail-uids-gids",
            "binary_version": "1.06-6.2~deb10u1build0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "netqmail",
        "purl": "pkg:deb/ubuntu/netqmail@1.06-6.2~deb10u1build0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.06-6.2~deb10u1build0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.06-6"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "qmail",
            "binary_version": "1.06-6.2~deb10u1build0.20.04.1"
          },
          {
            "binary_name": "qmail-uids-gids",
            "binary_version": "1.06-6.2~deb10u1build0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "netqmail",
        "purl": "pkg:deb/ubuntu/netqmail@1.06-6.2~deb10u1build0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.06-6.2~deb10u1build0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.06-6.1"
      ]
    }
  ],
  "aliases": [],
  "details": "qmail-verify as used in netqmail 1.06 is prone to an information disclosure vulnerability. A local attacker can test for the existence of files and directories anywhere in the filesystem because qmail-verify runs as root and tests for the existence of files in the attacker\u0027s home directory, without dropping its privileges first.",
  "id": "UBUNTU-CVE-2020-3812",
  "modified": "2025-07-16T04:55:31Z",
  "published": "2020-05-26T13:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-3812"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2020/05/198"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4556-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4621-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-3812"
    }
  ],
  "related": [
    "USN-4556-1",
    "USN-4621-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-3812"
  ]
}



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