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AUSCERT External Security Bulletin Redistribution
USN-4044-1: ZNC vulnerability
3 July 2019
AusCERT Security Bulletin Summary
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
CVE Names: CVE-2019-12816
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USN-4044-1: ZNC vulnerability
1 July 2019
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.04
o Ubuntu 18.10
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
znc could be made to crash or run programs as an administrator if it opened a
specially crafted file.
o 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.
The problem can be corrected by updating your system to the following package
znc - 1.7.2-2ubuntu0.1
znc - 1.7.1-2ubuntu0.2
Ubuntu 18.04 LTS
znc - 1.6.6-1ubuntu0.2
Ubuntu 16.04 LTS
znc - 1.6.3-1ubuntu0.2
To update your system, please follow these instructions: https://
After a standard system update you need to restart znc to make all the
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