GLSA 201507-16: Portage: Man-in-the-middle attack

http://security.gentoo.org/

Severity:	normal
Title:	Portage: Man-in-the-middle attack
Date:	07/10/2015
Bugs:	#469888
ID:	201507-16

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	Architecture(s)
sys-apps/portage	< 2.1.12.2	>= 2.1.12.2	All supported architectures

Description

Portage does not verify X.509 SSL certificates properly if HTTPS is used.

Impact

A remote attacker can spoof servers and modify binary package lists via specially crafted certificates.

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

CVE-2013-2100

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201507-16.xml

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.