Vulnerability-Lookup

UBUNTU-CVE-2020-15113 (CVE-2020-15113)

Vulnerability from osv_ubuntu – Published: 2020-08-05 20:15 – Updated: 2026-07-02 15:49 – Source website

Details

In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).

Severity

5.7 (Medium)


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

7.1 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2020-15113	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-2020-15113	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, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).",
  "id": "UBUNTU-CVE-2020-15113",
  "modified": "2026-07-02T15:49:51Z",
  "published": "2020-08-05T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15113"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-chh6-ppwq-jh92"
    },
    {
      "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-2020-15113"
    }
  ],
  "related": [
    "USN-5628-1",
    "USN-5628-2"
  ],
  "schema_version": "1.7.0",
  "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"
    }
  ],
  "upstream": [
    "CVE-2020-15113"
  ]
}

CVE-2020-15113 (GCVE-0-2020-15113)

Vulnerability from cvelistv5 – Published: 2020-08-05 19:30 – Updated: 2024-08-04 13:08

Title

Improper Preservation of Permissions in etcd

Summary

Severity

5.7 (Medium)


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

CWE

CWE-281 - {"CWE-281":"Improper Preservation of Permissions"}

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": "2024-08-04T13:08:22.262Z",
          "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-chh6-ppwq-jh92"
          },
          {
            "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, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-281",
              "description": "{\"CWE-281\":\"Improper Preservation of Permissions\"}",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-04T02:06:13.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-chh6-ppwq-jh92"
        },
        {
          "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-chh6-ppwq-jh92",
        "discovery": "UNKNOWN"
      },
      "title": "Improper Preservation of Permissions in etcd",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-15113",
          "STATE": "PUBLIC",
          "TITLE": "Improper Preservation of Permissions 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, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700)."
            }
          ]
        },
        "impact": {
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            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
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        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "{\"CWE-281\":\"Improper Preservation of Permissions\"}"
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            },
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              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"
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  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2020-15113",
    "datePublished": "2020-08-05T19:30:13.000Z",
    "dateReserved": "2020-06-25T00:00:00.000Z",
    "dateUpdated": "2024-08-04T13:08:22.262Z",
    "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-2020-15113 (CVE-2020-15113)

CVE-2020-15113 (GCVE-0-2020-15113)

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

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

Tags

Sightings

Nomenclature

Related by attack behaviour