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Gentoo: 201507-16 Normal: Portage Man-in-the-Middle Attack

gentoo
Calendar Grey July 10, 2015
Dist Gentoo Esm H88
A critical security flaw in Portage's urlopen API exposes systems to remote exploitation. Immediate updates are advised for safeguarding.
A vulnerability in Portage's urlopen function could allow a remote attacker to conduct a man-in-the-middle attack.

Summary

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

Topics%20covered

Topics Covered

security advisory gentoo remote attack man-in-the-middle normal severity portage

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
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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.

Severity: Normal
Title: Portage: Man-in-the-middle attack
Date: July 10, 2015
Bugs: #469888
ID: 201507-16

Topics%20covered

Topics Covered

security advisory gentoo remote attack man-in-the-middle normal severity portage

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.

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Affected Packages

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

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.

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