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[gentoo-announce] [ GLSA 201507-16 ] Portage: Man-in-the-middle attack

Posted on 10 July 2015
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201507-16
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https://security.gentoo.org/
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Severity: Normal
Title: Portage: Man-in-the-middle attack
Date: July 10, 2015
Bugs: #469888
ID: 201507-16

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Synopsis
========
A vulnerability in Portage's urlopen function could allow a remote
attacker to conduct a man-in-the-middle attack.

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

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/portage < 2.1.12.2 >= 2.1.12.2

Description
===========
Portage does not verify X.509 SSL certificate properly if HTTPS is
used.

Impact
======
A remote attacker can spoof servers and modify binary package lists via
specially crafted certificate.

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

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/portage-2.1.12.2"

References
==========
[ 1 ] CVE-2013-2100
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2100

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

https://security.gentoo.org/glsa/201507-16

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 2015 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.

http://creativecommons.org/licenses/by-sa/2.5



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