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             AUSCERT External Security Bulletin Redistribution

                     USN-4573-1: Vino vulnerabilities
                              8 October 2020


        AusCERT Security Bulletin Summary

Product:           Vino
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Access Privileged Data          -- Remote/Unauthenticated
                   Execute Arbitrary Code/Commands -- Existing Account      
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-14404 CVE-2020-14403 CVE-2020-14402
                   CVE-2020-14397 CVE-2019-15681 CVE-2018-7225

Reference:         ESB-2020.2972

Original Bulletin: 

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USN-4573-1: Vino vulnerabilities
07 October 2020

Several security issues were fixed in Vino.

  o Ubuntu 20.04 LTS
  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS


  o vino - VNC server for GNOME


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.

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)

Update instructions

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

Ubuntu 20.04

  o vino - 3.22.0-5ubuntu2.1

Ubuntu 18.04

  o vino - 3.22.0-3ubuntu1.1

Ubuntu 16.04

  o vino - 3.8.1-0ubuntu9.3

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


  o CVE-2014-6053
  o CVE-2018-7225
  o CVE-2019-15681
  o CVE-2020-14404
  o CVE-2020-14402
  o CVE-2020-14397
  o CVE-2020-14403

Related notices

  o USN-4407-1 : libvncserver, libvncclient1, libvncserver1
  o USN-3618-1 : libvncserver, libvncserver0, libvncclient1, libvncserver1
  o USN-4434-1 : libvncserver, libvncclient1, libvncserver1
  o USN-2365-1 : libvncserver0, libvncserver
  o USN-4547-1 : italc, italc-client, italc-master, libitalccore

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