USN-4735-1

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Source
https://ubuntu.com/security/notices/USN-4735-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4735-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4735-1
Upstream
Related
Published
2021-02-15T12:02:06.108231Z
Modified
2025-10-13T04:35:20Z
Summary
postgresql-12 vulnerability
Details

Heikki Linnakangas discovered that PostgreSQL incorrectly leaked values of denied columns when handling certain errors. A remote attacker could possibly use this issue to obtain sensitive information.

References

Affected packages

Ubuntu:20.04:LTS / postgresql-12

Package

Name
postgresql-12
Purl
pkg:deb/ubuntu/postgresql-12@12.6-0ubuntu0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
12.6-0ubuntu0.20.04.1

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "libecpg-compat3"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "libecpg-dev"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "libecpg6"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "libpgtypes3"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "libpq-dev"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "libpq5"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "postgresql-12"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "postgresql-client-12"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "postgresql-doc-12"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "postgresql-plperl-12"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "postgresql-plpython3-12"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "postgresql-pltcl-12"
        },
        {
            "binary_version": "12.6-0ubuntu0.20.04.1",
            "binary_name": "postgresql-server-dev-12"
        }
    ]
}

Database specific 

{
    "cves_map": {
        "cves": [
            {
                "id": "CVE-2021-3393",
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ]
            }
        ],
        "ecosystem": "Ubuntu:20.04:LTS"
    }
}