usn-4972-1
Vulnerability from osv_ubuntu
Published
2021-06-01 11:48
Modified
2026-04-27 14:11
Summary
postgresql-10, postgresql-12, postgresql-13 vulnerabilities
Details

Tom Lane discovered that PostgreSQL incorrect handled certain array subscripting calculations. An authenticated attacker could possibly use this issue to overwrite server memory and escalate privileges. (CVE-2021-32027)

Andres Freund discovered that PostgreSQL incorrect handled certain INSERT ... ON CONFLICT ... DO UPDATE commands. A remote attacker could possibly use this issue to read server memory and obtain sensitive information. (CVE-2021-32028)

Tom Lane discovered that PostgreSQL incorrect handled certain UPDATE ... RETURNING commands. A remote attacker could possibly use this issue to read server memory and obtain sensitive information. This issue only affected Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-32029)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-32027",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-32028",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libecpg-compat3",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libecpg6",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libpgtypes3",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libpq5",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "postgresql-10",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "postgresql-client-10",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "postgresql-doc-10",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "postgresql-plperl-10",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "postgresql-plpython-10",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "postgresql-plpython3-10",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "postgresql-pltcl-10",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "postgresql-server-dev-10",
            "binary_version": "10.17-0ubuntu0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "postgresql-10",
        "purl": "pkg:deb/ubuntu/postgresql-10@10.17-0ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.17-0ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.1-1",
        "10.1-2",
        "10.2-1",
        "10.3-1",
        "10.4-0ubuntu0.18.04",
        "10.5-0ubuntu0.18.04",
        "10.6-0ubuntu0.18.04.1",
        "10.7-0ubuntu0.18.04.1",
        "10.8-0ubuntu0.18.04.1",
        "10.9-0ubuntu0.18.04.1",
        "10.10-0ubuntu0.18.04.1",
        "10.12-0ubuntu0.18.04.1",
        "10.14-0ubuntu0.18.04.1",
        "10.15-0ubuntu0.18.04.1",
        "10.16-0ubuntu0.18.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-32027",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-32028",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-32029",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libecpg-compat3",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "libecpg6",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "libpgtypes3",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "libpq5",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-12",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-client-12",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-doc-12",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-plperl-12",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-plpython3-12",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-pltcl-12",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-server-dev-12",
            "binary_version": "12.7-0ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "postgresql-12",
        "purl": "pkg:deb/ubuntu/postgresql-12@12.7-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12.7-0ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "12.0-1",
        "12.1-1",
        "12.1-2build1",
        "12.2-1",
        "12.2-1ubuntu2",
        "12.2-4",
        "12.4-0ubuntu0.20.04.1",
        "12.5-0ubuntu0.20.04.1",
        "12.6-0ubuntu0.20.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Tom Lane discovered that PostgreSQL incorrect handled certain array\nsubscripting calculations. An authenticated attacker could possibly use\nthis issue to overwrite server memory and escalate privileges.\n(CVE-2021-32027)\n\nAndres Freund discovered that PostgreSQL incorrect handled certain\nINSERT ... ON CONFLICT ... DO UPDATE commands. A remote attacker could\npossibly use this issue to read server memory and obtain sensitive\ninformation. (CVE-2021-32028)\n\nTom Lane discovered that PostgreSQL incorrect handled certain UPDATE ...\nRETURNING commands. A remote attacker could possibly use this issue to read\nserver memory and obtain sensitive information. This issue only affected\nUbuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-32029)\n",
  "id": "USN-4972-1",
  "modified": "2026-04-27T14:11:27Z",
  "published": "2021-06-01T11:48:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4972-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-32027"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-32028"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-32029"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "postgresql-10, postgresql-12, postgresql-13 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-32027",
    "UBUNTU-CVE-2021-32028",
    "UBUNTU-CVE-2021-32029"
  ]
}



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