Advisory Published

USN-3877-1: LibVNCServer vulnerabilities

First published: Thu Jan 31 2019(Updated: )

It was discovered that LibVNCServer incorrectly handled certain operations. A remote attacker able to connect to applications using LibVNCServer could possibly use this issue to obtain sensitive information, cause a denial of service, or execute arbitrary code.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/libvncclient1<0.9.11+dfsg-1.1ubuntu0.1
0.9.11+dfsg-1.1ubuntu0.1
=18.10
All of
ubuntu/libvncserver1<0.9.11+dfsg-1.1ubuntu0.1
0.9.11+dfsg-1.1ubuntu0.1
=18.10
All of
ubuntu/libvncclient1<0.9.11+dfsg-1ubuntu1.1
0.9.11+dfsg-1ubuntu1.1
=18.04
All of
ubuntu/libvncserver1<0.9.11+dfsg-1ubuntu1.1
0.9.11+dfsg-1ubuntu1.1
=18.04
All of
ubuntu/libvncclient1<0.9.10+dfsg-3ubuntu0.16.04.3
0.9.10+dfsg-3ubuntu0.16.04.3
=16.04
All of
ubuntu/libvncserver1<0.9.10+dfsg-3ubuntu0.16.04.3
0.9.10+dfsg-3ubuntu0.16.04.3
=16.04
All of
ubuntu/libvncserver0<0.9.9+dfsg-1ubuntu1.4
0.9.9+dfsg-1ubuntu1.4
=14.04

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for the LibVNCServer vulnerabilities?

    The vulnerability ID for the LibVNCServer vulnerabilities is USN-3877-1.

  • What is the impact of the LibVNCServer vulnerabilities?

    The LibVNCServer vulnerabilities can allow a remote attacker to obtain sensitive information, cause a denial of service, or execute arbitrary code.

  • Which software versions are affected by the LibVNCServer vulnerabilities?

    The LibVNCServer vulnerabilities affect libvncclient1, libvncserver1, and libvncserver0 versions 0.9.11+dfsg-1.1ubuntu0.1, 0.9.11+dfsg-1ubuntu1.1, 0.9.10+dfsg-3ubuntu0.16.04.3, and 0.9.9+dfsg-1ubuntu1.4 on Ubuntu 18.10, 18.04, 16.04, and 14.04.

  • How can a remote attacker exploit the LibVNCServer vulnerabilities?

    A remote attacker able to connect to applications using LibVNCServer can exploit these vulnerabilities to perform various malicious activities.

  • How can I fix the LibVNCServer vulnerabilities?

    To fix the LibVNCServer vulnerabilities, update the libvncclient1, libvncserver1, and libvncserver0 packages to the specified remedy versions for your Ubuntu version.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203