USN-4614-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4614-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4614-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4614-1
Upstream
Related
Published
2020-11-03T15:00:24.852258Z
Modified
2025-10-13T04:35:16Z
Summary
gdm3 vulnerability
Details

Kevin Backhouse discovered that GDM incorrectly launched the initial setup tool when the accountsservice daemon was not reachable. A local attacker able to cause accountsservice to crash or stop responding could trick GDM into launching the initial setup tool and create a privileged user.

References

Affected packages

Ubuntu:18.04:LTS / gdm3

Package

Name
gdm3
Purl
pkg:deb/ubuntu/gdm3@3.28.3-0ubuntu18.04.6?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.28.3-0ubuntu18.04.6

Affected versions

3.*

3.26.1-3ubuntu2
3.26.1-3ubuntu3
3.26.2.1-0ubuntu1
3.26.2.1-2ubuntu1
3.26.2.1-2ubuntu2
3.27.90-0ubuntu1
3.27.92-0ubuntu1
3.28.0-0ubuntu1
3.28.2-0ubuntu1.2
3.28.2-0ubuntu1.3
3.28.2-0ubuntu1.4
3.28.3-0ubuntu18.04.1
3.28.3-0ubuntu18.04.3
3.28.3-0ubuntu18.04.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gdm3",
            "binary_version": "3.28.3-0ubuntu18.04.6"
        },
        {
            "binary_name": "gir1.2-gdm-1.0",
            "binary_version": "3.28.3-0ubuntu18.04.6"
        },
        {
            "binary_name": "libgdm-dev",
            "binary_version": "3.28.3-0ubuntu18.04.6"
        },
        {
            "binary_name": "libgdm1",
            "binary_version": "3.28.3-0ubuntu18.04.6"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-16125"
        }
    ]
}

Ubuntu:20.04:LTS / gdm3

Package

Name
gdm3
Purl
pkg:deb/ubuntu/gdm3@3.36.3-0ubuntu0.20.04.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.36.3-0ubuntu0.20.04.2

Affected versions

3.*

3.34.1-1ubuntu1
3.36.3-0ubuntu0.20.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gdm3",
            "binary_version": "3.36.3-0ubuntu0.20.04.2"
        },
        {
            "binary_name": "gir1.2-gdm-1.0",
            "binary_version": "3.36.3-0ubuntu0.20.04.2"
        },
        {
            "binary_name": "libgdm-dev",
            "binary_version": "3.36.3-0ubuntu0.20.04.2"
        },
        {
            "binary_name": "libgdm1",
            "binary_version": "3.36.3-0ubuntu0.20.04.2"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-16125"
        }
    ]
}