Gentoo: GLSA-201611-09 Moderate: Xen Privilege Escalation Risk
gentoo
November 15, 2016
Multiple vulnerabilities have been found in Xen, the worst of which allows gaining of privileges on the host system.
Summary
Multiple vulnerabilities have been discovered in Xen. Please review the CVE identifiers referenced below for details.
Topics Covered
Resolution
All Xen users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/xen-4.6.3-r3"
All Xen tools users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot -v ">=app-emulation/xen-tools-4.6.3-r2
All Xen tools users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot -v ">=app-emulation/xen-tools-4.6.3-r2
References
[ 1 ] CVE-2016-6258 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6258 [ 2 ] CVE-2016-7092 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7092 [ 3 ] CVE-2016-7093 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7093 [ 4 ] CVE-2016-7094 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7094 [ 5 ] CVE-2016-7777 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7777
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201611-09
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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.
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Severity: Normal
Title: Xen: Multiple vulnerabilities
Date: November 15, 2016
Bugs: #588780, #593198, #594850
ID: 201611-09
Topics Covered
Background
Xen is a bare-metal hypervisor.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-emulation/xen < 4.6.3-r3 >= 4.6.3-r3
2 app-emulation/xen-tools < 4.6.3-r2 >= 4.6.3-r2
-------------------------------------------------------------------
2 affected packages
Impact
=====
A malicious guest administrator could escalate their privileges on the
host system or cause a Denial of Service. Additionally, a malicious
unprivileged guest user may be able to obtain or corrupt sensitive
information (including cryptographic material) in other programs in the
same guest.
Workaround
There is no known workaround at this time.
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