=========================================================================Ubuntu Security Notice USN-3950-1
April 18, 2019

znc vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10

Summary:

ZNC could be made to crash or run programs if it received specially
crafted network traffic.

Software Description:
- znc: advanced modular IRC bouncer

Details:

It was discovered that ZNC incorrectly handled certain invalid encodings.
An authenticated remote user could use this issue to cause ZNC to crash,
resulting in a denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 18.10:
  znc                             1.7.1-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-3950-1
  CVE-2019-9917

Package Information:
  https://launchpad.net/ubuntu/+source/znc/1.7.1-2ubuntu0.1