USN-2352-1

Simon McVittie discovered that DBus incorrectly handled the file descriptors message limit. A local attacker could use this issue to cause DBus to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-3635)

Alban Crequy discovered that DBus incorrectly handled a large number of file descriptor messages. A local attacker could use this issue to cause DBus to stop responding, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-3636)

Alban Crequy discovered that DBus incorrectly handled certain file descriptor messages. A local attacker could use this issue to cause DBus to maintain persistent connections, possibly resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-3637)

Alban Crequy discovered that DBus incorrectly handled a large number of parallel connections and parallel message calls. A local attacker could use this issue to cause DBus to consume resources, possibly resulting in a denial of service. (CVE-2014-3638)

Alban Crequy discovered that DBus incorrectly handled incomplete connections. A local attacker could use this issue to cause DBus to fail legitimate connection attempts, resulting in a denial of service. (CVE-2014-3639)

References

Affected packages

Ubuntu:14.04:LTS / dbus

Package

Name: dbus
Purl: pkg:deb/ubuntu/dbus@1.6.18-0ubuntu4.2?arch=source&distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.6.18-0ubuntu4.2

Affected versions

1.*

1.6.12-0ubuntu10

1.6.18-0ubuntu1

1.6.18-0ubuntu2

1.6.18-0ubuntu3

1.6.18-0ubuntu4

1.6.18-0ubuntu4.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.6.18-0ubuntu4.2",
            "binary_name": "dbus"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.2",
            "binary_name": "dbus-x11"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.2",
            "binary_name": "libdbus-1-3"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.2",
            "binary_name": "libdbus-1-dev"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:14.04:LTS",
    "cves": [
        {
            "id": "CVE-2014-3635",
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2014-3636",
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2014-3637",
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2014-3638",
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2014-3639",
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}