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.test.osv.dev/v1/vulns/UBUNTU-CVE-2019-12749
Related
Published
2019-06-11T15:00:00Z
Modified
2025-01-13T10:21:57Z
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@1.6.18-0ubuntu4.5+esm1?arch=source&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",
    "binaries": [
        {
            "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",
            "binary_version": "1.6.18-0ubuntu4.5+esm1"
        }
    ],
    "ubuntu_priority": "medium"
}

Ubuntu:16.04:LTS / dbus

Package

Name
dbus
Purl
pkg:deb/ubuntu/dbus@1.10.6-1ubuntu3.4?arch=source&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",
    "binaries": [
        {
            "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",
            "binary_version": "1.10.6-1ubuntu3.4"
        }
    ],
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / dbus

Package

Name
dbus
Purl
pkg:deb/ubuntu/dbus@1.12.2-1ubuntu1.1?arch=source&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",
    "binaries": [
        {
            "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",
            "binary_version": "1.12.2-1ubuntu1.1"
        }
    ],
    "ubuntu_priority": "medium"
}