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From: Thomas Deutschmann <whissi@gentoo.org>
Reply-To: security@gentoo.org
To: gentoo-announce@lists.gentoo.org
Message-ID: <6eeec3d0-b72a-02db-8942-c5216dc0f9d5@gentoo.org>
Subject: [ GLSA 201801-20 ] Fossil: User-assisted execution of arbitrary code

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Gentoo Linux Security Advisory                           GLSA 201801-20
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Fossil: User-assisted execution of arbitrary code
     Date: January 27, 2018
     Bugs: #640208
       ID: 201801-20

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Synopsis
========

A vulnerability has been discovered in Fossil allowing for
user-assisted remote execution of arbitrary code.

Background
==========

Fossil is a simple, high-reliability, distributed software
configuration management system.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-vcs/fossil                < 2.4                       >= 2.4

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

Fossil does not properly validate SSH sync protocol URLs.

Impact
======

A remote attacker, by enticing a user to open a specially crafted URL,
could possibly execute arbitrary commands with the privileges of the
user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Fossil users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-vcs/fossil-2.4"

References
==========

[ 1 ] CVE-2017-17459
      https://nvd.nist.gov/vuln/detail/CVE-2017-17459

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

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

 https://security.gentoo.org/glsa/201801-20

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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