ubuntu-cve-2020-15112
Vulnerability from osv_ubuntu
Published
2020-08-05 20:15
Modified
2026-07-02 15:49
Summary
Details

In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in the ReadAll method in wal/wal.go. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime panic when reading the entry.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
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": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "etcd",
            "binary_version": "3.2.17+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "etcd-client",
            "binary_version": "3.2.17+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "etcd-server",
            "binary_version": "3.2.17+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "golang-etcd-server-dev",
            "binary_version": "3.2.17+dfsg-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "etcd",
        "purl": "pkg:deb/ubuntu/etcd@3.2.17+dfsg-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2.17+dfsg-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.1.0-1",
        "3.2.9+dfsg-2",
        "3.2.9+dfsg-3",
        "3.2.17+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "etcd",
            "binary_version": "3.2.26+dfsg-6ubuntu0.1"
          },
          {
            "binary_name": "etcd-client",
            "binary_version": "3.2.26+dfsg-6ubuntu0.1"
          },
          {
            "binary_name": "etcd-server",
            "binary_version": "3.2.26+dfsg-6ubuntu0.1"
          },
          {
            "binary_name": "golang-etcd-server-dev",
            "binary_version": "3.2.26+dfsg-6ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "etcd",
        "purl": "pkg:deb/ubuntu/etcd@3.2.26+dfsg-6ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2.26+dfsg-6ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.26+dfsg-3",
        "3.2.26+dfsg-4",
        "3.2.26+dfsg-6"
      ]
    },
    {
      "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": "In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in the ReadAll method in wal/wal.go. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime panic when reading the entry.",
  "id": "UBUNTU-CVE-2020-15112",
  "modified": "2026-07-02T15:49:51Z",
  "published": "2020-08-05T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15112"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-m332-53r6-2w93"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5628-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5628-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-15112"
    }
  ],
  "related": [
    "USN-5628-1",
    "USN-5628-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-15112"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.