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Gentoo: GLSA-202409-23 Normal: ZNC Remote Code Exec Threat

gentoo
Calendar Grey September 24, 2024
Scroller Gentoo
An exploit in ZNC may allow for remote command execution, creating a threat for Debian users. Please update to version 1.9.1.
A vulnerability has been found in ZNC which could result in remote code execution.

Summary

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

Topics%20covered

Topics Covered

security advisory gentoo remote execution exploit risk normal severity ZNC modtcl

Resolution

All ZNC users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-irc/znc-1.9.1"

References

[ 1 ] CVE-2024-39844 https://nvd.nist.gov/vuln/detail/CVE-2024-39844

Availability

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

Severity: Normal
Title: ZNC: Remote Code Execution
Date: September 24, 2024
Bugs: #935422
ID: 202409-23

Topics%20covered

Topics Covered

security advisory gentoo remote execution exploit risk normal severity ZNC modtcl

Synopsis

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

Background

ZNC is an advanced IRC bouncer.

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Affected Packages

Package Vulnerable Unaffected ----------- ------------ ------------ net-irc/znc < 1.9.1 >= 1.9.1

Impact

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

Workaround

Unload the mod_tcl module.