USN-4398-1

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Source
https://ubuntu.com/security/notices/USN-4398-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4398-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4398-1
Upstream
Related
Published
2020-06-16T17:05:55.491778Z
Modified
2025-10-13T04:35:09Z
Summary
dbus vulnerability
Details

Kevin Backhouse discovered that DBus incorrectly handled file descriptors. A local attacker could possibly use this issue to cause DBus to crash, resulting in a denial of service.

References

Affected packages

Ubuntu:16.04:LTS / dbus

Package

Name
dbus
Purl
pkg:deb/ubuntu/dbus@1.10.6-1ubuntu3.6?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.10.6-1ubuntu3.6

Affected versions

1.*

1.10.0-1ubuntu1
1.10.4-1ubuntu2
1.10.6-1ubuntu1
1.10.6-1ubuntu2
1.10.6-1ubuntu3
1.10.6-1ubuntu3.1
1.10.6-1ubuntu3.3
1.10.6-1ubuntu3.4
1.10.6-1ubuntu3.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.10.6-1ubuntu3.6",
            "binary_name": "dbus"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.6",
            "binary_name": "dbus-tests"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.6",
            "binary_name": "dbus-user-session"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.6",
            "binary_name": "dbus-x11"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.6",
            "binary_name": "libdbus-1-3"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.6",
            "binary_name": "libdbus-1-dev"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-12049",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:18.04:LTS / dbus

Package

Name
dbus
Purl
pkg:deb/ubuntu/dbus@1.12.2-1ubuntu1.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.12.2-1ubuntu1.2

Affected versions

1.*

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.12.2-1ubuntu1.2",
            "binary_name": "dbus"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.2",
            "binary_name": "dbus-tests"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.2",
            "binary_name": "dbus-user-session"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.2",
            "binary_name": "dbus-x11"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.2",
            "binary_name": "libdbus-1-3"
        },
        {
            "binary_version": "1.12.2-1ubuntu1.2",
            "binary_name": "libdbus-1-dev"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-12049",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:20.04:LTS / dbus

Package

Name
dbus
Purl
pkg:deb/ubuntu/dbus@1.12.16-2ubuntu2.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.12.16-2ubuntu2.1

Affected versions

1.*

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

Ecosystem specific 

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

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-12049",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}