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USN-4573-1: Vino vulnerabilities

7 October 2020

Several security issues were fixed in Vino.

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Releases

Packages

  • vino - VNC server for GNOME

Details

Nicolas Ruff discovered that Vino incorrectly handled large ClientCutText
messages. A remote attacker could use this issue to cause the server to
crash, resulting in a denial of service. (CVE-2014-6053)

It was discovered that Vino incorrectly handled certain packet lengths. A
remote attacker could possibly use this issue to obtain sensitive
information, cause a denial of service, or execute arbitrary code.
(CVE-2018-7225)

Pavel Cheremushkin discovered that an information disclosure vulnerability
existed in Vino when sending a ServerCutText message. An attacker could
possibly use this issue to expose sensitive information. (CVE-2019-15681)

It was discovered that Vino incorrectly handled region clipping. A remote
attacker could possibly use this issue to cause Vino to crash, resulting in
a denial of service. (CVE-2020-14397)

It was discovered that Vino incorrectly handled encodings. A remote
attacker could use this issue to cause Vino to crash, resulting in a denial
of service, or possibly execute arbitrary code. (CVE-2020-14402,
CVE-2020-14403, CVE-2020-14404)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

After a standard system update you need to restart your session to make all
the necessary changes.

Related notices

  • USN-2365-1: libvncserver, linuxvnc, libvncserver0, libvncserver-config, libvncserver-dev
  • USN-4587-1: libitalccore, italc-master, italc-management-console, italc, italc-client
  • USN-3618-1: libvncserver, libvncserver1, libvncserver0, libvncserver-config, libvncclient1, linuxvnc, libvncserver-dev
  • USN-4547-1: italc-client, libitalccore, italc-master, italc
  • USN-4407-1: libvncserver, libvncserver1, libvncserver-config, libvncclient1, libvncserver-dev
  • USN-4434-1: libvncserver, libvncserver1, libvncserver-config, libvncclient1, libvncserver-dev