UBUNTU-CVE-2019-20788

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Source
https://ubuntu.com/security/CVE-2019-20788
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20788.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2019-20788
Upstream
Downstream
Related
Published
2020-04-23T19:15:00Z
Modified
2025-10-24T04:48:09Z
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
  • Ubuntu - medium
Summary
[none]
Details

libvncclient/cursor.c in LibVNCServer through 0.9.12 has a HandleCursorShape integer overflow and heap-based buffer overflow via a large height or width value. NOTE: this may overlap CVE-2019-15690.

References

Affected packages

Ubuntu:14.04:LTS / x11vnc

Package

Name
x11vnc
Purl
pkg:deb/ubuntu/x11vnc@0.9.13-1.1?arch=source&distro=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-3ubuntu0.16.04.4?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.10+dfsg-3ubuntu0.16.04.4

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.4"
        },
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.4"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.4"
        },
        {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.4"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / libvncserver

Package

Name
libvncserver
Purl
pkg:deb/ubuntu/libvncserver@0.9.11+dfsg-1ubuntu1.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.11+dfsg-1ubuntu1.2

Affected versions

0.*

0.9.11+dfsg-1
0.9.11+dfsg-1ubuntu1
0.9.11+dfsg-1ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.11+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.11+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.11+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.11+dfsg-1ubuntu1.2"
        }
    ],
    "availability": "No subscription required"
}