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Gentoo Linux Security Advisory                           GLSA 201904-11
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Portage: Man-in-the-middle
     Date: April 08, 2019
     Bugs: #646212
       ID: 201904-11

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Synopsis
=======
A vulnerability in emerge-delta-webrsync and Portage could result in a
man-in-the-middle attack.

Background
=========
Portage is the package management and distribution system for Gentoo.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-portage/emerge-delta-webrsync
                                  < 3.7.4                    >= 3.7.4 
  2  sys-apps/portage             < 2.3.22                  >= 2.3.22 
    -------------------------------------------------------------------
     2 affected packages

Description
==========
A vulnerability was discovered in emerge-delta-webrsync and Portage
that did not properly validate the revocation status of GPG keys.

Impact
=====
A remote attacker could conduct a man-in-the-middle attack.  Please
review the referenced bug for specific details.

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

Resolution
=========
All emerge-delta-webrsync users should upgrade to the latest version:

  # emerge --sync
  # emerge -a --oneshot -v ">=app-portage/emerge-delta-webrsync-3.7.4"

All Portage users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-apps/portage-2.3.22"

References
=========

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

 https://security.gentoo.org/glsa/201904-11

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/