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Gentoo Linux Security Advisory                           GLSA 201803-07
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                                           https://security.gentoo.org/
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 Severity: High
    Title: JabberD 2.x: Multiple vulnerabilities
     Date: March 19, 2018
     Bugs: #623806, #629412, #631068
       ID: 201803-07

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Synopsis
========

Multiple vulnerabilities have been found in Gentoo's JabberD 2.x
ebuild, the worst of which allows local attackers to escalate
privileges.

Background
==========

JabberD 2.x is an open source Jabber server written in C.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-im/jabberd2              <= 2.6.1                 Vulnerable!
    -------------------------------------------------------------------
     NOTE: Certain packages are still vulnerable. Users should migrate
           to another package if one is available or wait for the
           existing packages to be marked stable by their
           architecture maintainers.

Description
===========

Multiple vulnerabilities have been discovered in Gentoo's JabberD 2.x
ebuild. Please review the referenced CVE identifiers for details.

Impact
======

An attacker could possibly escalate privileges by owning system
binaries in trusted locations, cause a Denial of Service condition by
manipulating the PID file from jabberd2 services, bypass security via
SASL ANONYMOUS connections or have other unspecified impacts.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

Gentoo has discontinued support for JabberD 2.x and recommends that
users unmerge the package:

  # emerge --unmerge "net-im/jabberd2"

As an alternative, users may want to upgrade their systems to use
net-im/prosody instead of net-im/jabberd2.
 

References
==========

[ 1 ] CVE-2017-10807
      https://nvd.nist.gov/vuln/detail/CVE-2017-10807
[ 2 ] CVE-2017-18225
      https://nvd.nist.gov/vuln/detail/CVE-2017-18225
[ 3 ] CVE-2017-18226
      https://nvd.nist.gov/vuln/detail/CVE-2017-18226

Availability
============

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

 https://security.gentoo.org/glsa/201803-07

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 2018 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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