GLSA 202409-23: ZNC: Remote Code Execution

http://security.gentoo.org/

Severity:	normal
Title:	ZNC: Remote Code Execution
Date:	09/24/2024
Bugs:	#935422
ID:	202409-23

Synopsis

A vulnerability has been found in ZNC which could result in remote code execution.

Background

ZNC is an advanced IRC bouncer.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-irc/znc	< 1.9.1	>= 1.9.1	All supported architectures

Description

ZNC's modtcl could allow for remote code execution via a KICK.

Impact

A vulnerable ZNC with the modtcl module loaded could be exploited for remote code execution.

Workaround

Unload the mod_tcl module.

Resolution

All ZNC users should upgrade to the latest version:

          # emerge --sync
          # emerge --ask --oneshot --verbose ">=net-irc/znc-1.9.1"

References

CVE-2024-39844

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202409-23.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.