UBUNTU-CVE-2018-20021

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Source

https://ubuntu.com/security/CVE-2018-20021

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20021.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-20021

Related

Published

2018-12-19T00:00:00Z

Modified

2024-10-15T14:06:36Z

Severity

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

Summary

[none]

Details

LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM

References

Affected packages

Ubuntu:14.04:LTS / libvncserver

Package

Name: libvncserver
Purl: pkg:deb/ubuntu/libvncserver?arch=src?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

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "0.9.9+dfsg-1ubuntu1.4",
            "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"
        }
    ]
}

Ubuntu:Pro:14.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc?arch=src?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

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

Ubuntu:16.04:LTS / italc

Package

Name: italc
Purl: pkg:deb/ubuntu/italc?arch=src?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

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1",
            "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"
        }
    ]
}

Ubuntu:16.04:LTS / libvncserver

Package

Name: libvncserver
Purl: pkg:deb/ubuntu/libvncserver?arch=src?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

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.3",
            "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"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc?arch=src?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?arch=src?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

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1",
            "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"
        }
    ]
}

Ubuntu:18.04:LTS / libvncserver

Package

Name: libvncserver
Purl: pkg:deb/ubuntu/libvncserver?arch=src?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

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "0.9.11+dfsg-1ubuntu1.1",
            "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"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / ssvnc

Package

Name: ssvnc
Purl: pkg:deb/ubuntu/ssvnc?arch=src?distro=esm-apps/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.0.29-3

1.0.29-3build1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc?arch=src?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 / ssvnc

Package

Name: ssvnc
Purl: pkg:deb/ubuntu/ssvnc?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.0.29-5

Affected versions

1.*

1.0.29-4build1

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.0.29-5",
            "binary_name": "ssvnc"
        },
        {
            "binary_version": "1.0.29-5",
            "binary_name": "ssvnc-dbgsym"
        }
    ]
}

Ubuntu:20.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc?arch=src?distro=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 / ssvnc

Package

Name: ssvnc
Purl: pkg:deb/ubuntu/ssvnc?arch=src?distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.0.29-5

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.0.29-5",
            "binary_name": "ssvnc"
        },
        {
            "binary_version": "1.0.29-5",
            "binary_name": "ssvnc-dbgsym"
        }
    ]
}

Ubuntu:22.04:LTS / tightvnc

Package

Name: tightvnc
Purl: pkg:deb/ubuntu/tightvnc?arch=src?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?arch=src?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?arch=src?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"
}