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Ubuntu 24.04 LTS: USN-6990-1 Moderate: znc Remote Code Execution

ubuntu
Calendar Grey September 4, 2024
Dist Ubuntu Esm H88
A critical ZNC vulnerability affects multiple Ubuntu versions, exposing users to unauthorized data access. Immediate updates are necessary for protection
znc could be made to execute arbitrary code on a user's system if they were persuaded to join a malicious server.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS 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%20covered

Topics Covered

security advisory security issue remote code execution Ubuntu malicious server znc

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

Topics%20covered

Topics Covered

security advisory security issue remote code execution Ubuntu malicious server znc

Package Information

https://launchpad.net/ubuntu/+source/znc/1.8.2-2ubuntu0.1

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