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USN-4044-1: ZNC vulnerability

1 July 2019

znc could be made to crash or run programs as an administrator if it opened a specially crafted file.



  • znc - advanced modular IRC bouncer


Fix vulnerability where an authenticated non-admin users could load
a module with a crafted name, then escalate privileges and run
arbitrary code.

Update instructions

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

Ubuntu 19.04
Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04

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