The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: ncmpc 0.24-1+deb8u1build0.16.04.1 ncmpc-lyrics 0.24-1+deb8u1build0.16.04.1 After a standard system update you need to restart ncmpc to make all the necessary changes.
https://ubuntu.com/security/notices/USN-4507-1
CVE-2018-9240
https://launchpad.net/ubuntu/+source/ncmpc/0.24-1+deb8u1build0.16.04.1
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