ubuntu-cve-2020-15115
Vulnerability from osv_ubuntu
Published
2020-08-06 22:15
Modified
2026-07-02 15:49
Summary
Details

etcd before versions 3.3.23 and 3.4.10 does not perform any password length validation, which allows for very short passwords, such as those with a length of one. This may allow an attacker to guess or brute-force users' passwords with little computational effort.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "etcd",
            "binary_version": "2.2.5+dfsg-1ubuntu1"
          },
          {
            "binary_name": "golang-etcd-server-dev",
            "binary_version": "2.2.5+dfsg-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "etcd",
        "purl": "pkg:deb/ubuntu/etcd@2.2.5+dfsg-1ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.0+dfsg-2",
        "2.2.1+dfsg-1",
        "2.2.2+dfsg-1",
        "2.2.2+dfsg-2",
        "2.2.3+dfsg-1",
        "2.2.5+dfsg-1",
        "2.2.5+dfsg-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "etcd",
            "binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "etcd-client",
            "binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "etcd-server",
            "binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "golang-etcd-server-dev",
            "binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "etcd",
        "purl": "pkg:deb/ubuntu/etcd@3.2.17+dfsg-1ubuntu0.1+esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.1.0-1",
        "3.2.9+dfsg-2",
        "3.2.9+dfsg-3",
        "3.2.17+dfsg-1",
        "3.2.17+dfsg-1ubuntu0.1~esm1",
        "3.2.17+dfsg-1ubuntu0.1",
        "3.2.17+dfsg-1ubuntu0.1+esm1",
        "3.2.17+dfsg-1ubuntu0.1+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "etcd",
            "binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1"
          },
          {
            "binary_name": "etcd-client",
            "binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1"
          },
          {
            "binary_name": "etcd-server",
            "binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1"
          },
          {
            "binary_name": "golang-etcd-server-dev",
            "binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "etcd",
        "purl": "pkg:deb/ubuntu/etcd@3.2.26+dfsg-6ubuntu0.2+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.26+dfsg-3",
        "3.2.26+dfsg-4",
        "3.2.26+dfsg-6",
        "3.2.26+dfsg-6ubuntu0.1",
        "3.2.26+dfsg-6ubuntu0.2",
        "3.2.26+dfsg-6ubuntu0.2+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "etcd",
            "binary_version": "3.3.25+dfsg-7ubuntu0.22.04.2+esm3"
          },
          {
            "binary_name": "etcd-client",
            "binary_version": "3.3.25+dfsg-7ubuntu0.22.04.2+esm3"
          },
          {
            "binary_name": "etcd-server",
            "binary_version": "3.3.25+dfsg-7ubuntu0.22.04.2+esm3"
          },
          {
            "binary_name": "golang-etcd-server-dev",
            "binary_version": "3.3.25+dfsg-7ubuntu0.22.04.2+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "etcd",
        "purl": "pkg:deb/ubuntu/etcd@3.3.25+dfsg-7ubuntu0.22.04.2+esm3?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.3.25+dfsg-6",
        "3.3.25+dfsg-7",
        "3.3.25+dfsg-7ubuntu0.22.04.1",
        "3.3.25+dfsg-7ubuntu0.22.04.1+esm1",
        "3.3.25+dfsg-7ubuntu0.22.04.2",
        "3.3.25+dfsg-7ubuntu0.22.04.2+esm1",
        "3.3.25+dfsg-7ubuntu0.22.04.2+esm2",
        "3.3.25+dfsg-7ubuntu0.22.04.2+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "etcd-client",
            "binary_version": "3.4.30-1ubuntu0.24.04.3+esm2"
          },
          {
            "binary_name": "etcd-server",
            "binary_version": "3.4.30-1ubuntu0.24.04.3+esm2"
          },
          {
            "binary_name": "golang-etcd-server-dev",
            "binary_version": "3.4.30-1ubuntu0.24.04.3+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "etcd",
        "purl": "pkg:deb/ubuntu/etcd@3.4.30-1ubuntu0.24.04.3+esm2?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.23-4ubuntu2",
        "3.4.30-1",
        "3.4.30-1build1",
        "3.4.30-1ubuntu0.24.04.1",
        "3.4.30-1ubuntu0.24.04.2",
        "3.4.30-1ubuntu0.24.04.2+esm1",
        "3.4.30-1ubuntu0.24.04.3",
        "3.4.30-1ubuntu0.24.04.3+esm1",
        "3.4.30-1ubuntu0.24.04.3+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "etcd-client",
            "binary_version": "3.5.16-4"
          },
          {
            "binary_name": "etcd-server",
            "binary_version": "3.5.16-4"
          },
          {
            "binary_name": "golang-etcd-server-dev",
            "binary_version": "3.5.16-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "etcd",
        "purl": "pkg:deb/ubuntu/etcd@3.5.16-4?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.5.16-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "etcd-client",
            "binary_version": "3.5.16-10ubuntu0.26.04.1~esm1"
          },
          {
            "binary_name": "etcd-server",
            "binary_version": "3.5.16-10ubuntu0.26.04.1~esm1"
          },
          {
            "binary_name": "golang-etcd-server-dev",
            "binary_version": "3.5.16-10ubuntu0.26.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "etcd",
        "purl": "pkg:deb/ubuntu/etcd@3.5.16-10ubuntu0.26.04.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.5.16-4",
        "3.5.16-10",
        "3.5.16-10ubuntu0.26.04.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "etcd before versions 3.3.23 and 3.4.10 does not perform any password length validation, which allows for very short passwords, such as those with a length of one. This may allow an attacker to guess or brute-force users\u0027 passwords with little computational effort.",
  "id": "UBUNTU-CVE-2020-15115",
  "modified": "2026-07-02T15:49:51Z",
  "published": "2020-08-06T22:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15115"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-4993-m7g5-r9hh"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-15115"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-15115"
  ]
}



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