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[gentoo-announce] [ GLSA 201908-15 ] ZNC: Privilege escalation

Posted on 15 August 2019
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201908-15
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https://security.gentoo.org/
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Severity: Normal
Title: ZNC: Privilege escalation
Date: August 15, 2019
Bugs: #688152
ID: 201908-15

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Synopsis
========
A vulnerability in ZNC allows users to escalate privileges.

Background
==========
ZNC is an advanced IRC bouncer.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-irc/znc < 1.7.4_rc1 >= 1.7.4_rc1

Description
===========
It was discovered that ZNC's "Modules.cpp" allows remote authenticated
non-admin users to escalate privileges.

Impact
======
A remote authenticated attacker could escalate privileges and
subsequently execute arbitrary code or conduct a Denial of Service
attack.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All ZNC users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/znc-1.7.4_rc1"

References
==========
[ 1 ] CVE-2019-12816
https://nvd.nist.gov/vuln/detail/CVE-2019-12816

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/201908-15

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.

License
=======
Copyright 2019 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5


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