Vulnerability-Lookup

UBUNTU-CVE-2020-15106 (CVE-2020-15106)

Vulnerability from osv_ubuntu – Published: 2020-08-05 19:15 – Updated: 2026-07-02 15:49 – Source website

Details

In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in decodeRecord method. The size of a record is stored in the length field of a WAL file and no additional validation is done on this data. Therefore, it is possible to forge an extremely large frame size that can unintentionally panic at the expense of any RAFT participant trying to decode the WAL.

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

URL

Type

	https://ubuntu.com/security/CVE-2020-15106	REPORT
	https://github.com/etcd-io/etcd/security/advisori…	REPORT
	https://ubuntu.com/security/notices/USN-5628-1	ADVISORY
	https://ubuntu.com/security/notices/USN-5628-2	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2020-15106	REPORT

JSON

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, a large slice causes panic in decodeRecord method. The size of a record is stored in the length field of a WAL file and no additional validation is done on this data. Therefore, it is possible to forge an extremely large frame size that can unintentionally panic at the expense of any RAFT participant trying to decode the WAL.",
  "id": "UBUNTU-CVE-2020-15106",
  "modified": "2026-07-02T15:49:51Z",
  "published": "2020-08-05T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15106"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2"
    },
    {
      "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-2020-15106"
    }
  ],
  "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-2020-15106"
  ]
}

CVE-2020-15106 (GCVE-0-2020-15106)

Vulnerability from cvelistv5 – Published: 2020-08-05 19:05 – Updated: 2024-08-04 13:08

Title

Improper Input Validation in etcd

Summary

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/etcd-io/etcd/security/advisori…	x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Impacted products

1 product

Vendor	Product	Version
etcd-io	etcd	Affected: < 3.3.23 Affected: < 3.4.10

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T13:08:21.619Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2"
          },
          {
            "name": "FEDORA-2020-cd43b84c16",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "etcd",
          "vendor": "etcd-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.3.23"
            },
            {
              "status": "affected",
              "version": "\u003c 3.4.10"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in decodeRecord method. The size of a record is stored in the length field of a WAL file and no additional validation is done on this data. Therefore, it is possible to forge an extremely large frame size that can unintentionally panic at the expense of any RAFT participant trying to decode the WAL."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20: Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-04T02:06:12.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2"
        },
        {
          "name": "FEDORA-2020-cd43b84c16",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"
        }
      ],
      "source": {
        "advisory": "GHSA-p4g4-wgrh-qrg2",
        "discovery": "UNKNOWN"
      },
      "title": "Improper Input Validation in etcd",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-15106",
          "STATE": "PUBLIC",
          "TITLE": "Improper Input Validation in etcd"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "etcd",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 3.3.23"
                          },
                          {
                            "version_value": "\u003c 3.4.10"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "etcd-io"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in decodeRecord method. The size of a record is stored in the length field of a WAL file and no additional validation is done on this data. Therefore, it is possible to forge an extremely large frame size that can unintentionally panic at the expense of any RAFT participant trying to decode the WAL."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-20: Improper Input Validation"
                }
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2",
              "refsource": "CONFIRM",
              "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2"
            },
            {
              "name": "FEDORA-2020-cd43b84c16",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"
            }
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        "source": {
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        }
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  },
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    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2020-15106",
    "datePublished": "2020-08-05T19:05:13.000Z",
    "dateReserved": "2020-06-25T00:00:00.000Z",
    "dateUpdated": "2024-08-04T13:08:21.619Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

USN-5628-1 (UBUNTU-CVE-2020-15106)

Vulnerability from osv_ubuntu – Published: 2022-09-22 13:38 – Updated: 2026-04-27 14:11 – Source website

Summary

etcd vulnerabilities

Details

It was discovered that etcd incorrectly handled certain specially crafted WAL files. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-15106, CVE-2020-15112)

It was discovered that etcd incorrectly handled directory permissions when trying to create a directory that exists already. An attacker could possibly use this issue to obtain sensitive information. (CVE-2020-15113)

It was discovered that etcd incorrectly handled endpoint setup. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-15114)

References

URL

Type

	https://ubuntu.com/security/notices/USN-5628-1	ADVISORY
	https://ubuntu.com/security/CVE-2020-15106	REPORT
	https://ubuntu.com/security/CVE-2020-15112	REPORT
	https://ubuntu.com/security/CVE-2020-15113	REPORT
	https://ubuntu.com/security/CVE-2020-15114	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-15106",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2020-15112",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2020-15113",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-15114",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "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"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that etcd incorrectly handled certain specially crafted\nWAL files. An attacker could possibly use this issue to cause a denial of\nservice. (CVE-2020-15106, CVE-2020-15112)\n\nIt was discovered that etcd incorrectly handled directory permissions when\ntrying to create a directory that exists already. An attacker could\npossibly use this issue to obtain sensitive information. (CVE-2020-15113)\n\nIt was discovered that etcd incorrectly handled endpoint setup. An\nattacker could possibly use this issue to cause a denial of\nservice. (CVE-2020-15114)\n",
  "id": "USN-5628-1",
  "modified": "2026-04-27T14:11:29Z",
  "published": "2022-09-22T13:38:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5628-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15106"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15112"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15113"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15114"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "etcd vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-15106",
    "UBUNTU-CVE-2020-15112",
    "UBUNTU-CVE-2020-15113",
    "UBUNTU-CVE-2020-15114"
  ]
}

USN-5628-2 (UBUNTU-CVE-2020-15106)

Vulnerability from osv_ubuntu – Published: 2022-09-22 15:16 – Updated: 2026-04-27 14:11 – Source website

Summary

etcd vulnerabilities

Details

USN-5628-1 fixed vulnerabilities in etcd. This update provides the corresponding updates for Ubuntu 18.04 ESM.

Original advisory details:

It was discovered that etcd incorrectly handled certain specially crafted WAL files. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-15106, CVE-2020-15112)

It was discovered that etcd incorrectly handled endpoint setup. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-15114)

References

URL

Type

	https://ubuntu.com/security/notices/USN-5628-2	ADVISORY
	https://ubuntu.com/security/CVE-2020-15106	REPORT
	https://ubuntu.com/security/CVE-2020-15112	REPORT
	https://ubuntu.com/security/CVE-2020-15113	REPORT
	https://ubuntu.com/security/CVE-2020-15114	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-15106",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2020-15112",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2020-15113",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-15114",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "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"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-5628-1 fixed vulnerabilities in etcd.\nThis update provides the corresponding updates for Ubuntu 18.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that etcd incorrectly handled certain specially crafted\n WAL files. An attacker could possibly use this issue to cause a denial of\n service. (CVE-2020-15106, CVE-2020-15112)\n\n It was discovered that etcd incorrectly handled directory permissions when\n trying to create a directory that exists already. An attacker could\n possibly use this issue to obtain sensitive information. (CVE-2020-15113)\n\n It was discovered that etcd incorrectly handled endpoint setup. An\n attacker could possibly use this issue to cause a denial of\n service. (CVE-2020-15114)\n",
  "id": "USN-5628-2",
  "modified": "2026-04-27T14:11:29Z",
  "published": "2022-09-22T15:16:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5628-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15106"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15112"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15113"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15114"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "etcd vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-15106",
    "UBUNTU-CVE-2020-15112",
    "UBUNTU-CVE-2020-15113",
    "UBUNTU-CVE-2020-15114"
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

UBUNTU-CVE-2020-15106 (CVE-2020-15106)

CVE-2020-15106 (GCVE-0-2020-15106)

USN-5628-1 (UBUNTU-CVE-2020-15106)

USN-5628-2 (UBUNTU-CVE-2020-15106)

Tags

Sightings

Nomenclature

Related by attack behaviour