USN-4972-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4972-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4972-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4972-1
Upstream
Related
Published
2021-06-01T11:48:38.092890Z
Modified
2025-10-13T04:35:30Z
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

Affected packages

Ubuntu:18.04:LTS / postgresql-10

Package

Name
postgresql-10
Purl
pkg:deb/ubuntu/postgresql-10@10.17-0ubuntu0.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
10.17-0ubuntu0.18.04.1

Affected versions

10.*

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "10.17-0ubuntu0.18.04.1",
            "binary_name": "libecpg-compat3"
        },
        {
            "binary_version": "10.17-0ubuntu0.18.04.1",
            "binary_name": "libecpg-dev"
        },
        {
            "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": "libpq-dev"
        },
        {
            "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"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2021-32027",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-32028",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:20.04:LTS / postgresql-12

Package

Name
postgresql-12
Purl
pkg:deb/ubuntu/postgresql-12@12.7-0ubuntu0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
12.7-0ubuntu0.20.04.1

Affected versions

12.*

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "12.7-0ubuntu0.20.04.1",
            "binary_name": "libecpg-compat3"
        },
        {
            "binary_version": "12.7-0ubuntu0.20.04.1",
            "binary_name": "libecpg-dev"
        },
        {
            "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": "libpq-dev"
        },
        {
            "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"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2021-32027",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-32028",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-32029",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}