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Gentoo: 201405-06 High: OpenSSH Remote Code Execution Risk

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Calendar Grey May 11, 2014
Scroller Gentoo
Critical alert regarding OpenSSH security flaws; significant remote command execution threats for Gentoo users.
Multiple vulnerabilities have been found in OpenSSH, the worst of which may allow remote attackers to execute arbitrary code.

Summary

Multiple vulnerabilities have been discovered in OpenSSH. Please review the CVE identifiers referenced below for details.

Topics%20covered

Topics Covered

security advisory gentoo remote code execution threat multiple issues high openssh

Resolution

All OpenSSH users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/openssh-6.6_p1-r1"
NOTE: One or more of the issues described in this advisory have been fixed in previous updates. They are included in this advisory for the sake of completeness. It is likely that your system is already no longer affected by them.

References

[ 1 ] CVE-2008-5161 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2008-5161 [ 2 ] CVE-2010-4478 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-4478 [ 3 ] CVE-2010-4755 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-4755 [ 4 ] CVE-2010-5107 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-5107 [ 5 ] CVE-2011-5000 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-5000 [ 6 ] CVE-2012-0814 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-0814 [ 7 ] CVE-2014-2532 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-2532

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201405-06
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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: High
Title: OpenSSH: Multiple vulnerabilities
Date: May 11, 2014
Bugs: #231292, #247466, #386307, #410869, #419357, #456006, #505066
ID: 201405-06

Topics%20covered

Topics Covered

security advisory gentoo remote code execution threat multiple issues high openssh

Synopsis

Multiple vulnerabilities have been found in OpenSSH, the worst of which may allow remote attackers to execute arbitrary code.

Background

OpenSSH is a complete SSH protocol implementation that includes an SFTP client and server support.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/openssh < 6.6_p1-r1 >= 6.6_p1-r1

Impact

===== A remote attacker could execute arbitrary code, cause a Denial of Service condition, obtain sensitive information, or bypass environment restrictions.

Workaround

There is no known workaround at this time.