UBUNTU-CVE-2019-12749

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Source

https://ubuntu.com/security/CVE-2019-12749

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12749.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-12749

Related

Published

2019-06-11T15:00:00Z

Modified

2019-06-11T15:00:00Z

Severity

7.1 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

[none]

Details

dbus before 1.10.28, 1.12.x before 1.12.16, and 1.13.x before 1.13.12, as used in DBusServer in Canonical Upstart in Ubuntu 14.04 (and in some, less common, uses of dbus-daemon), allows cookie spoofing because of symlink mishandling in the reference implementation of DBUSCOOKIESHA1 in the libdbus library. (This only affects the DBUSCOOKIESHA1 authentication mechanism.) A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause a DBusServer with a different uid to read and write in unintended locations. In the worst case, this could result in the DBusServer reusing a cookie that is known to the malicious client, and treating that cookie as evidence that a subsequent client connection came from an attacker-chosen uid, allowing authentication bypass.

References

Affected packages

Ubuntu:Pro:14.04:LTS / dbus

Package

Name: dbus
Purl: pkg:deb/ubuntu/dbus?arch=src?distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.6.18-0ubuntu4.5+esm1

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

1.6.18-0ubuntu4.2

1.6.18-0ubuntu4.3

1.6.18-0ubuntu4.4

1.6.18-0ubuntu4.5

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "dbus"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "dbus-1-dbg"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "dbus-1-doc"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "dbus-dbgsym"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "dbus-x11"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "dbus-x11-dbgsym"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "libdbus-1-3"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "libdbus-1-3-dbgsym"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "libdbus-1-dev"
        },
        {
            "binary_version": "1.6.18-0ubuntu4.5+esm1",
            "binary_name": "libdbus-1-dev-dbgsym"
        }
    ]
}

Ubuntu:16.04:LTS / dbus

Package

Name: dbus
Purl: pkg:deb/ubuntu/dbus?arch=src?distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.10.6-1ubuntu3.4

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

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-1-dbg"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-1-doc"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-dbgsym"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-tests"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-tests-dbgsym"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-udeb"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-udeb-dbgsym"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-user-session"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-x11"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "dbus-x11-dbgsym"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "libdbus-1-3"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "libdbus-1-3-dbgsym"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "libdbus-1-3-udeb"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "libdbus-1-3-udeb-dbgsym"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "libdbus-1-dev"
        },
        {
            "binary_version": "1.10.6-1ubuntu3.4",
            "binary_name": "libdbus-1-dev-dbgsym"
        }
    ]
}

Ubuntu:18.04:LTS / dbus

Package

Name: dbus
Purl: pkg:deb/ubuntu/dbus?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.12.2-1ubuntu1.1

Affected versions

1.*

1.10.22-1ubuntu1

1.12.0-1ubuntu1

1.12.2-1ubuntu1

Ecosystem specific

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