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Citrix XenServer Multiple Security Updates (CTX200288)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
A number of security vulnerabilities have been identified in Citrix XenServer. These vulnerabilities could, if exploited, allow unprivileged code in an HVM guest to gain privileged execution within that guest and also allow privileged code within a PV or HVM guest to crash the host or other guests. The following vulnerabilities have been addressed: - CVE-2014-8595: Missing privilege level checks in x86 emulation of far branches - CVE-2014-8866: Excessive checking in compatibility mode hypercall argument translation - CVE-2014-8867: Insufficient bounding of `REP MOVS` to MMIO emulated inside the hypervisor - CVE-2014-1666: PHYSDEVOP_{prepare, release}_msix exposed to unprivileged guests
Affected Software
Affected Software
These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including Citrix XenServer 6.2 Service Pack 1.
Detection Method
Detection Method
Check the installed hotfixes
Solution
Solution
Apply the hotfix referenced in the advisory.