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Gentoo Linux Security Advisory                           GLSA 201612-44
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Roundcube: Arbitrary code execution
     Date: December 24, 2016
     Bugs: #601410
       ID: 201612-44

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Synopsis
=======
A vulnerability in Roundcube could potentially lead to arbitrary code
execution.

Background
=========
Free and open source webmail software for the masses, written in PHP.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  mail-client/roundcube        < 1.2.3                    >= 1.2.3 

Description
==========
Roundcube, when no SMTP server is configured and the sendmail program
is enabled, does not properly restrict the use of custom envelope-from
addresses on the sendmail command line.

Impact
=====
An authenticated remote attacker could possibly execute arbitrary code
with the privileges of the process, or cause a Denial of Service
condition.

Workaround
=========
Don't use a MTA (Mail Transfer Agent) in conjunction with Roundcube
which implements sendmail's "-O" or "-X" parameter, or configure
Roundcube to use a SMTP server as recommended by upstream.

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=mail-client/roundcube-1.2.3"

References
=========
[ 1 ] CVE-2016-9920
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9920

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

 https://security.gentoo.org/glsa/201612-44

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 2016 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/

Gentoo: GLSA-201612-44: Roundcube: Arbitrary code execution

A vulnerability in Roundcube could potentially lead to arbitrary code execution.

Summary

Roundcube, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line.

Resolution

All Roundcube users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=mail-client/roundcube-1.2.3"

References

[ 1 ] CVE-2016-9920 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9920

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201612-44

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
Severity: Normal
Title: Roundcube: Arbitrary code execution
Date: December 24, 2016
Bugs: #601410
ID: 201612-44

Synopsis

A vulnerability in Roundcube could potentially lead to arbitrary code execution.

Background

Free and open source webmail software for the masses, written in PHP.

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 mail-client/roundcube < 1.2.3 >= 1.2.3

Impact

===== An authenticated remote attacker could possibly execute arbitrary code with the privileges of the process, or cause a Denial of Service condition.

Workaround

Don't use a MTA (Mail Transfer Agent) in conjunction with Roundcube which implements sendmail's "-O" or "-X" parameter, or configure Roundcube to use a SMTP server as recommended by upstream.

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