USN-5244-2

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Source
https://ubuntu.com/security/notices/USN-5244-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5244-2.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-5244-2
Upstream
Related
Published
2022-05-09T05:55:53.689835Z
Modified
2025-10-13T04:35:44Z
Summary
dbus vulnerability
Details

USN-5244-1 fixed a vulnerability in DBus. This update provides the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:

Daniel Onaca discovered that DBus contained a use-after-free vulnerability, caused by the incorrect handling of usernames sharing the same UID. An attacker could possibly use this issue to cause DBus to crash, resulting in a denial of service.

References

Affected packages

Ubuntu:18.04:LTS / dbus

Package

Name
dbus
Purl
pkg:deb/ubuntu/dbus@1.12.2-1ubuntu1.3?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.12.2-1ubuntu1.3

Affected versions

1.*

1.10.22-1ubuntu1
1.12.0-1ubuntu1
1.12.2-1ubuntu1
1.12.2-1ubuntu1.1
1.12.2-1ubuntu1.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.12.2-1ubuntu1.3",
            "binary_name": "dbus"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.3",
            "binary_name": "dbus-tests"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.3",
            "binary_name": "dbus-user-session"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.3",
            "binary_name": "dbus-x11"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.3",
            "binary_name": "libdbus-1-3"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.3",
            "binary_name": "libdbus-1-dev"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2020-35512"
        }
    ],
    "ecosystem": "Ubuntu:18.04:LTS"
}

Ubuntu:20.04:LTS / dbus

Package

Name
dbus
Purl
pkg:deb/ubuntu/dbus@1.12.16-2ubuntu2.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.12.16-2ubuntu2.2

Affected versions

1.*

1.12.14-1ubuntu2
1.12.16-2ubuntu1
1.12.16-2ubuntu2
1.12.16-2ubuntu2.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.12.16-2ubuntu2.2",
            "binary_name": "dbus"
        },
        {
            "binary_version": "1.12.16-2ubuntu2.2",
            "binary_name": "dbus-tests"
        },
        {
            "binary_version": "1.12.16-2ubuntu2.2",
            "binary_name": "dbus-user-session"
        },
        {
            "binary_version": "1.12.16-2ubuntu2.2",
            "binary_name": "dbus-x11"
        },
        {
            "binary_version": "1.12.16-2ubuntu2.2",
            "binary_name": "libdbus-1-3"
        },
        {
            "binary_version": "1.12.16-2ubuntu2.2",
            "binary_name": "libdbus-1-dev"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2020-35512"
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}