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Ubuntu 24.04 LTS: USN-6990-1 Moderate: znc Remote Code Execution
ubuntu
September 4, 2024
znc could be made to execute arbitrary code on a user's system if they were persuaded to join a malicious server.
Summary
znc could be made to execute arbitrary code on a user's system if
they were persuaded to join a malicious server.
Software Description:
- znc: advanced modular IRC bouncer
Details:
Johannes Kuhn (DasBrain) discovered that znc incorrectly handled
user input under certain operations. An attacker could possibly
use this issue to execute arbitrary code on a user's system if
the user was tricked into joining a malicious server.
Topics Covered
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS znc 1.9.0-2ubuntu0.1~esm2 Available with Ubuntu Pro znc-dev 1.9.0-2ubuntu0.1~esm2 Available with Ubuntu Pro znc-perl 1.9.0-2ubuntu0.1~esm2 Available with Ubuntu Pro znc-python 1.9.0-2ubuntu0.1~esm2 Available with Ubuntu Pro znc-tcl 1.9.0-2ubuntu0.1~esm2 Available with Ubuntu Pro Ubuntu 22.04 LTS znc 1.8.2-2ubuntu0.1 znc-dev 1.8.2-2ubuntu0.1 znc-perl 1.8.2-2ubuntu0.1 znc-python 1.8.2-2ubuntu0.1 znc-tcl 1.8.2-2ubuntu0.1 Ubuntu 20.04 LTS znc 1.7.5-4ubuntu0.1~esm2 Available with Ubuntu Pro znc-dev 1.7.5-4ubuntu0.1~esm2 Available with Ubuntu Pro znc-perl 1.7.5-4ubuntu0.1~esm2 Available with Ubuntu Pro znc-python 1.7.5-4ubuntu0.1~esm2 Available with Ubuntu Pro znc-tcl 1.7.5-4ubuntu0.1~esm2 Available with Ubuntu Pro Ubuntu 18.04 LTS znc 1.6.6-1ubuntu0.2+esm2 Available with Ubuntu Pro znc-dev 1.6.6-1ubuntu0.2+esm2 Available with Ubuntu Pro znc-perl 1.6.6-1ubuntu0.2+esm2 Available with Ubuntu Pro znc-python 1.6.6-1ubuntu0.2+esm2 Available with Ubuntu Pro znc-tcl 1.6.6-1ubuntu0.2+esm2 Available with Ubuntu Pro Ubuntu 16.04 LTS znc 1.6.3-1ubuntu0.2+esm2 Available with Ubuntu Pro znc-dev 1.6.3-1ubuntu0.2+esm2 Available with Ubuntu Pro znc-perl 1.6.3-1ubuntu0.2+esm2 Available with Ubuntu Pro znc-python 1.6.3-1ubuntu0.2+esm2 Available with Ubuntu Pro znc-tcl 1.6.3-1ubuntu0.2+esm2 Available with Ubuntu Pro Ubuntu 14.04 LTS znc 1.2-3ubuntu0.1+esm3 Available with Ubuntu Pro znc-dev 1.2-3ubuntu0.1+esm3 Available with Ubuntu Pro znc-perl 1.2-3ubuntu0.1+esm3 Available with Ubuntu Pro znc-python 1.2-3ubuntu0.1+esm3 Available with Ubuntu Pro znc-tcl 1.2-3ubuntu0.1+esm3 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-6990-1
CVE-2024-39844
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