UBUNTU-CVE-2018-20749

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Source
https://ubuntu.com/security/CVE-2018-20749
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20749.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-20749
Related
Published
2019-01-30T00:00:00Z
Modified
2025-05-26T16:39:49Z
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
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/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 a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 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"
        }
    ],
    "availability": "No subscription required",
    "ubuntu_priority": "medium"
}

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"
        }
    ],
    "availability": "No subscription required",
    "ubuntu_priority": "medium"
}

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"
        }
    ],
    "availability": "No subscription required",
    "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"
        }
    ],
    "availability": "No subscription required",
    "ubuntu_priority": "medium"
}

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"
        }
    ],
    "availability": "No subscription required",
    "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"
        }
    ],
    "availability": "No subscription required",
    "ubuntu_priority": "medium"
}