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Gentoo Linux Security Advisory                           GLSA 201806-07
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Transmission: Remote code execution
     Date: June 20, 2018
     Bugs: #644406
       ID: 201806-07

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Synopsis
========

A vulnerability in Transmission could allow a remote attacker to
execute arbitrary RPC commands.

Background
==========

Transmission is a cross-platform BitTorrent client.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-p2p/transmission          < 2.93                     >= 2.93 

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

A vulnerability was discovered in how Transmission handles access
control through the X-Transmission-Session-Id.

Impact
======

A remote attacker could execute arbitrary RFC commands or consequently
conduct a DNS rebinding attack.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Transmission users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-p2p/transmission-"

References
==========

[ 1 ] CVE-2018-5702
      https://nvd.nist.gov/vuln/detail/CVE-2018-5702

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

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

 https://security.gentoo.org/glsa/201806-07

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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