USN-3171-1

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Source
https://ubuntu.com/security/notices/USN-3171-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3171-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-3171-1
Upstream
Related
Published
2017-01-11T18:09:31.534299Z
Modified
2025-07-16T09:00:36.819989Z
Summary
libvncserver vulnerabilities
Details

Josef Gajdusek discovered that the LibVNCServer client library incorrectly handled certain FrameBufferUpdate messages. If a user were tricked into connecting to a malicious server, an attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2016-9941, CVE-2016-9942)

References

Affected packages

Ubuntu:14.04:LTS / libvncserver

Package

Name
libvncserver
Purl
pkg:deb/ubuntu/libvncserver@0.9.9+dfsg-1ubuntu1.2?arch=source&distro=trusty

Affected ranges

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

Affected versions

0.*

0.9.9+dfsg-1
0.9.9+dfsg-1ubuntu1
0.9.9+dfsg-1ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.9+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "libvncserver-config-dbgsym",
            "binary_version": "0.9.9+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.9+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "libvncserver-dev-dbgsym",
            "binary_version": "0.9.9+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "libvncserver0",
            "binary_version": "0.9.9+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "libvncserver0-dbg",
            "binary_version": "0.9.9+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "libvncserver0-dbgsym",
            "binary_version": "0.9.9+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "linuxvnc",
            "binary_version": "0.9.9+dfsg-1ubuntu1.2"
        },
        {
            "binary_name": "linuxvnc-dbgsym",
            "binary_version": "0.9.9+dfsg-1ubuntu1.2"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:16.04:LTS / libvncserver

Package

Name
libvncserver
Purl
pkg:deb/ubuntu/libvncserver@0.9.10+dfsg-3ubuntu0.16.04.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.10+dfsg-3ubuntu0.16.04.1

Affected versions

0.*

0.9.10+dfsg-3
0.9.10+dfsg-3build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        },
        {
            "binary_name": "libvncclient1-dbg",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        },
        {
            "binary_name": "libvncclient1-dbgsym",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        },
        {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        },
        {
            "binary_name": "libvncserver-config-dbgsym",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        },
        {
            "binary_name": "libvncserver-dev",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        },
        {
            "binary_name": "libvncserver-dev-dbgsym",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        },
        {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        },
        {
            "binary_name": "libvncserver1-dbg",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        },
        {
            "binary_name": "libvncserver1-dbgsym",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.1"
        }
    ],
    "availability": "No subscription required"
}