UBUNTU-CVE-2018-20748

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Source

https://ubuntu.com/security/CVE-2018-20748

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20748.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2018-20748

Related

Published

2019-01-30T00:00:00Z

Modified

2025-06-03T17:32:45Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete.

References

Affected packages

Ubuntu:14.04:LTS / libvncserver

Package

Name: libvncserver
Purl: pkg:deb/ubuntu/libvncserver@0.9.9+dfsg-1ubuntu1.4?arch=source&distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.9.9+dfsg-1ubuntu1.4

Affected versions

0.*

0.9.9+dfsg-1

0.9.9+dfsg-1ubuntu1

0.9.9+dfsg-1ubuntu1.1

0.9.9+dfsg-1ubuntu1.2

0.9.9+dfsg-1ubuntu1.3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.9+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "libvncserver-config-dbgsym",
            "binary_version": "0.9.9+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.9+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "libvncserver-dev-dbgsym",
            "binary_version": "0.9.9+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "libvncserver0",
            "binary_version": "0.9.9+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "libvncserver0-dbg",
            "binary_version": "0.9.9+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "libvncserver0-dbgsym",
            "binary_version": "0.9.9+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "linuxvnc",
            "binary_version": "0.9.9+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "linuxvnc-dbgsym",
            "binary_version": "0.9.9+dfsg-1ubuntu1.4"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "No subscription required"
}

Ubuntu:Pro:14.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc@1.3.9-6.5+deb8u1build0.14.04.1~esm1?arch=source&distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.3.9-6.5+deb8u1build0.14.04.1~esm1

Affected versions

1.*

1.3.9-6.4

1.3.9-6.4ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "tightvncserver",
            "binary_version": "1.3.9-6.5+deb8u1build0.14.04.1~esm1"
        },
        {
            "binary_name": "tightvncserver-dbgsym",
            "binary_version": "1.3.9-6.5+deb8u1build0.14.04.1~esm1"
        },
        {
            "binary_name": "xtightvncviewer",
            "binary_version": "1.3.9-6.5+deb8u1build0.14.04.1~esm1"
        },
        {
            "binary_name": "xtightvncviewer-dbgsym",
            "binary_version": "1.3.9-6.5+deb8u1build0.14.04.1~esm1"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:16.04:LTS / italc

Package

Name: italc
Purl: pkg:deb/ubuntu/italc@1:2.0.2+dfsg1-4ubuntu0.1?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.0.2+dfsg1-4ubuntu0.1

Affected versions

1:2.*

1:2.0.2+dfsg1-3

1:2.0.2+dfsg1-4

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "italc-client",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "italc-client-dbg",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "italc-client-dbgsym",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "italc-management-console",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "italc-management-console-dbg",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "italc-management-console-dbgsym",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "italc-master",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "italc-master-dbg",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "italc-master-dbgsym",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "libitalccore",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "libitalccore-dbg",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "libitalccore-dbgsym",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "No subscription required"
}

Ubuntu:16.04:LTS / libvncserver

Package

Name: libvncserver
Purl: pkg:deb/ubuntu/libvncserver@0.9.10+dfsg-3ubuntu0.16.04.3?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.9.10+dfsg-3ubuntu0.16.04.3

Affected versions

0.*

0.9.10+dfsg-3

0.9.10+dfsg-3build1

0.9.10+dfsg-3ubuntu0.16.04.1

0.9.10+dfsg-3ubuntu0.16.04.2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        },
        {
            "binary_name": "libvncclient1-dbg",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        },
        {
            "binary_name": "libvncclient1-dbgsym",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        },
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        },
        {
            "binary_name": "libvncserver-config-dbgsym",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        },
        {
            "binary_name": "libvncserver-dev-dbgsym",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        },
        {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        },
        {
            "binary_name": "libvncserver1-dbg",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        },
        {
            "binary_name": "libvncserver1-dbgsym",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "No subscription required"
}

Ubuntu:Pro:16.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc@1.3.10-0ubuntu3?arch=source&distro=esm-apps/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.10-0ubuntu2

1.3.10-0ubuntu3

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / italc

Package

Name: italc
Purl: pkg:deb/ubuntu/italc@1:3.0.3+dfsg1-3ubuntu0.1?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:3.0.3+dfsg1-3ubuntu0.1

Affected versions

1:3.*

1:3.0.3+dfsg1-1

1:3.0.3+dfsg1-2

1:3.0.3+dfsg1-2build1

1:3.0.3+dfsg1-2ubuntu1

1:3.0.3+dfsg1-3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "italc-client",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        },
        {
            "binary_name": "italc-client-dbgsym",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        },
        {
            "binary_name": "italc-management-console",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        },
        {
            "binary_name": "italc-management-console-dbgsym",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        },
        {
            "binary_name": "italc-master",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        },
        {
            "binary_name": "italc-master-dbgsym",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        },
        {
            "binary_name": "libitalccore",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        },
        {
            "binary_name": "libitalccore-dbgsym",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / libvncserver

Package

Name: libvncserver
Purl: pkg:deb/ubuntu/libvncserver@0.9.11+dfsg-1ubuntu1.1?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.9.11+dfsg-1ubuntu1.1

Affected versions

0.*

0.9.11+dfsg-1

0.9.11+dfsg-1ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.11+dfsg-1ubuntu1.1"
        },
        {
            "binary_name": "libvncclient1-dbg",
            "binary_version": "0.9.11+dfsg-1ubuntu1.1"
        },
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.11+dfsg-1ubuntu1.1"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.11+dfsg-1ubuntu1.1"
        },
        {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.11+dfsg-1ubuntu1.1"
        },
        {
            "binary_name": "libvncserver1-dbg",
            "binary_version": "0.9.11+dfsg-1ubuntu1.1"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "No subscription required"
}

Ubuntu:Pro:18.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc@1.3.10-0ubuntu4?arch=source&distro=esm-apps/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.10-0ubuntu3

1.3.10-0ubuntu4

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / libvncserver

Package

Name: libvncserver
Purl: pkg:deb/ubuntu/libvncserver@0.9.11+dfsg-1.3?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.9.11+dfsg-1.3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.11+dfsg-1.3"
        },
        {
            "binary_name": "libvncclient1-dbg",
            "binary_version": "0.9.11+dfsg-1.3"
        },
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.11+dfsg-1.3"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.11+dfsg-1.3"
        },
        {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.11+dfsg-1.3"
        },
        {
            "binary_name": "libvncserver1-dbg",
            "binary_version": "0.9.11+dfsg-1.3"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "No subscription required"
}

Ubuntu:Pro:20.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc@1.3.10-0ubuntu5?arch=source&distro=esm-apps/focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.10-0ubuntu5

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc@1:1.3.10-5?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*

1:1.3.10-3

1:1.3.10-5

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc@1:1.3.10-9?arch=source&distro=oracular

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*

1:1.3.10-8

1:1.3.10-9

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc@1:1.3.10-8?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*

1:1.3.10-7

1:1.3.10-7build1

1:1.3.10-7build2

1:1.3.10-8

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:25.04 / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc@1:1.3.10-9?arch=source&distro=plucky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*

1:1.3.10-9

Ecosystem specific

{
    "ubuntu_priority": "medium"
}