UBUNTU-CVE-2020-25708

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Source
https://ubuntu.com/security/CVE-2020-25708
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25708.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-25708
Upstream
Downstream
Related
Published
2020-11-13T00:00:00Z
Modified
2025-09-08T16:46:21Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw to send a specially crafted message that, when processed by the VNC server, would lead to a floating point exception, resulting in a denial of service.

References

Affected packages

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=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.9-6.4
1.3.9-6.4ubuntu1
1.3.9-6.5+deb8u1build0.14.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tightvncserver",
            "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"
        }
    ]
}

Ubuntu:Pro:14.04:LTS / x11vnc

Package

Name
x11vnc
Purl
pkg:deb/ubuntu/x11vnc@0.9.13-1.1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.9.13-1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "x11vnc",
            "binary_version": "0.9.13-1.1"
        },
        {
            "binary_name": "x11vnc-data",
            "binary_version": "0.9.13-1.1"
        }
    ]
}

Ubuntu:16.04:LTS / libvncserver

Package

Name
libvncserver
Purl
pkg:deb/ubuntu/libvncserver@0.9.10+dfsg-3ubuntu0.16.04.6?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.10+dfsg-3ubuntu0.16.04.6

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
0.9.10+dfsg-3ubuntu0.16.04.3
0.9.10+dfsg-3ubuntu0.16.04.4
0.9.10+dfsg-3ubuntu0.16.04.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.6"
        },
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.6"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.6"
        },
        {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.6"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:16.04:LTS / vino

Package

Name
vino
Purl
pkg:deb/ubuntu/vino@3.8.1-0ubuntu9.4?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.8.1-0ubuntu9.4

Affected versions

3.*

3.8.1-0ubuntu6
3.8.1-0ubuntu7
3.8.1-0ubuntu8
3.8.1-0ubuntu9
3.8.1-0ubuntu9.1
3.8.1-0ubuntu9.2
3.8.1-0ubuntu9.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "vino",
            "binary_version": "3.8.1-0ubuntu9.4"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:16.04:LTS / italc

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:2.*

1:2.0.2+dfsg1-3
1:2.0.2+dfsg1-4
1:2.0.2+dfsg1-4ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "italc-client",
            "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-master",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        },
        {
            "binary_name": "libitalccore",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
        }
    ]
}

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 

{
    "binaries": [
        {
            "binary_name": "tightvncserver",
            "binary_version": "1.3.10-0ubuntu3"
        },
        {
            "binary_name": "xtightvncviewer",
            "binary_version": "1.3.10-0ubuntu3"
        }
    ]
}

Ubuntu:18.04:LTS / libvncserver

Package

Name
libvncserver
Purl
pkg:deb/ubuntu/libvncserver@0.9.11+dfsg-1ubuntu1.4?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.11+dfsg-1ubuntu1.4

Affected versions

0.*

0.9.11+dfsg-1
0.9.11+dfsg-1ubuntu1
0.9.11+dfsg-1ubuntu1.1
0.9.11+dfsg-1ubuntu1.2
0.9.11+dfsg-1ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.11+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.11+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.11+dfsg-1ubuntu1.4"
        },
        {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.11+dfsg-1ubuntu1.4"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / vino

Package

Name
vino
Purl
pkg:deb/ubuntu/vino@3.22.0-3ubuntu1.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.22.0-3ubuntu1.2

Affected versions

3.*

3.8.1-0ubuntu12
3.22.0-2ubuntu1
3.22.0-3ubuntu1
3.22.0-3ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "vino",
            "binary_version": "3.22.0-3ubuntu1.2"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:18.04:LTS / italc

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
1:3.0.3+dfsg1-3ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "italc-client",
            "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-master",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        },
        {
            "binary_name": "libitalccore",
            "binary_version": "1:3.0.3+dfsg1-3ubuntu0.1"
        }
    ]
}

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 

{
    "binaries": [
        {
            "binary_name": "tightvncserver",
            "binary_version": "1.3.10-0ubuntu4"
        },
        {
            "binary_name": "xtightvncviewer",
            "binary_version": "1.3.10-0ubuntu4"
        }
    ]
}

Ubuntu:20.04:LTS / libvncserver

Package

Name
libvncserver
Purl
pkg:deb/ubuntu/libvncserver@0.9.12+dfsg-9ubuntu0.3?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.12+dfsg-9ubuntu0.3

Affected versions

0.*

0.9.11+dfsg-1.3
0.9.12+dfsg-3ubuntu3
0.9.12+dfsg-6
0.9.12+dfsg-7
0.9.12+dfsg-8
0.9.12+dfsg-9
0.9.12+dfsg-9ubuntu0.1
0.9.12+dfsg-9ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.12+dfsg-9ubuntu0.3"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.12+dfsg-9ubuntu0.3"
        },
        {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.12+dfsg-9ubuntu0.3"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / vino

Package

Name
vino
Purl
pkg:deb/ubuntu/vino@3.22.0-5ubuntu2.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.22.0-5ubuntu2.2

Affected versions

3.*

3.22.0-5ubuntu2
3.22.0-5ubuntu2.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "vino",
            "binary_version": "3.22.0-5ubuntu2.2"
        }
    ],
    "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 

{
    "binaries": [
        {
            "binary_name": "tightvncserver",
            "binary_version": "1.3.10-0ubuntu5"
        },
        {
            "binary_name": "xtightvncviewer",
            "binary_version": "1.3.10-0ubuntu5"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / veyon

Package

Name
veyon
Purl
pkg:deb/ubuntu/veyon@4.3.1+repack1-2build2?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.2.4+repack1-2
4.2.5+repack1-1
4.3.1+repack1-1
4.3.1+repack1-2
4.3.1+repack1-2build1
4.3.1+repack1-2build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libveyon-core",
            "binary_version": "4.3.1+repack1-2build2"
        },
        {
            "binary_name": "veyon-configurator",
            "binary_version": "4.3.1+repack1-2build2"
        },
        {
            "binary_name": "veyon-master",
            "binary_version": "4.3.1+repack1-2build2"
        },
        {
            "binary_name": "veyon-plugins",
            "binary_version": "4.3.1+repack1-2build2"
        },
        {
            "binary_name": "veyon-service",
            "binary_version": "4.3.1+repack1-2build2"
        }
    ]
}

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 

{
    "binaries": [
        {
            "binary_name": "tightvncpasswd",
            "binary_version": "1:1.3.10-5"
        },
        {
            "binary_name": "tightvncserver",
            "binary_version": "1:1.3.10-5"
        },
        {
            "binary_name": "xtightvncviewer",
            "binary_version": "1:1.3.10-5"
        }
    ]
}

Ubuntu:22.04:LTS / veyon

Package

Name
veyon
Purl
pkg:deb/ubuntu/veyon@4.5.3+repack1-1build2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.5.3+repack1-1build1
4.5.3+repack1-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libveyon-core",
            "binary_version": "4.5.3+repack1-1build2"
        },
        {
            "binary_name": "veyon-configurator",
            "binary_version": "4.5.3+repack1-1build2"
        },
        {
            "binary_name": "veyon-master",
            "binary_version": "4.5.3+repack1-1build2"
        },
        {
            "binary_name": "veyon-plugins",
            "binary_version": "4.5.3+repack1-1build2"
        },
        {
            "binary_name": "veyon-service",
            "binary_version": "4.5.3+repack1-1build2"
        }
    ]
}

Ubuntu:22.04:LTS / vino

Package

Name
vino
Purl
pkg:deb/ubuntu/vino@3.22.0-6ubuntu3?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.22.0-6ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "vino",
            "binary_version": "3.22.0-6ubuntu3"
        }
    ],
    "availability": "No subscription required"
}

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 

{
    "binaries": [
        {
            "binary_name": "tightvncpasswd",
            "binary_version": "1:1.3.10-8"
        },
        {
            "binary_name": "tightvncserver",
            "binary_version": "1:1.3.10-8"
        },
        {
            "binary_name": "xtightvncviewer",
            "binary_version": "1:1.3.10-8"
        }
    ]
}

Ubuntu:24.04:LTS / veyon

Package

Name
veyon
Purl
pkg:deb/ubuntu/veyon@4.7.5+repack1-1ubuntu5?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.7.5+repack1-1build2
4.7.5+repack1-1ubuntu1
4.7.5+repack1-1ubuntu3
4.7.5+repack1-1ubuntu4
4.7.5+repack1-1ubuntu5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libveyon-core",
            "binary_version": "4.7.5+repack1-1ubuntu5"
        },
        {
            "binary_name": "veyon-configurator",
            "binary_version": "4.7.5+repack1-1ubuntu5"
        },
        {
            "binary_name": "veyon-master",
            "binary_version": "4.7.5+repack1-1ubuntu5"
        },
        {
            "binary_name": "veyon-plugins",
            "binary_version": "4.7.5+repack1-1ubuntu5"
        },
        {
            "binary_name": "veyon-service",
            "binary_version": "4.7.5+repack1-1ubuntu5"
        }
    ]
}

Ubuntu:24.04:LTS / vino

Package

Name
vino
Purl
pkg:deb/ubuntu/vino@3.22.0-6ubuntu3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.22.0-6ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "vino",
            "binary_version": "3.22.0-6ubuntu3"
        }
    ],
    "availability": "No subscription required"
}

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 

{
    "binaries": [
        {
            "binary_name": "tightvncpasswd",
            "binary_version": "1:1.3.10-9"
        },
        {
            "binary_name": "tightvncserver",
            "binary_version": "1:1.3.10-9"
        },
        {
            "binary_name": "xtightvncviewer",
            "binary_version": "1:1.3.10-9"
        }
    ]
}

Ubuntu:25.04 / veyon

Package

Name
veyon
Purl
pkg:deb/ubuntu/veyon@4.7.5+repack1-1ubuntu6?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.7.5+repack1-1ubuntu6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libveyon-core",
            "binary_version": "4.7.5+repack1-1ubuntu6"
        },
        {
            "binary_name": "veyon-configurator",
            "binary_version": "4.7.5+repack1-1ubuntu6"
        },
        {
            "binary_name": "veyon-master",
            "binary_version": "4.7.5+repack1-1ubuntu6"
        },
        {
            "binary_name": "veyon-plugins",
            "binary_version": "4.7.5+repack1-1ubuntu6"
        },
        {
            "binary_name": "veyon-service",
            "binary_version": "4.7.5+repack1-1ubuntu6"
        }
    ]
}