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Citrix XenServer Multiple Security Updates (CTX216071)
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 that may allow malicious privileged code running within a guest VM to compromise the host. The following vulnerabilities have been addressed: - CVE-2016-7092 (High): x86: Disallow L3 recursive pagetable for 32-bit guests - CVE-2016-7093 (High): x86: Mishandling of instruction pointer truncation during emulation - CVE-2016-7094 (Medium): x86 HVM: Overflow of sh_ctxt->seg_reg[] - CVE-2016-7154 (High): use after free in FIFO event channel code
Affected Software
Affected Software
These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including Citrix XenServer 7.0.
Detection Method
Detection Method
Check the installed hotfixes
Solution
Solution
Apply the hotfix referenced in the advisory