Citrix XenServer Multiple Security Updates (CTX216071)

Published: 2016-09-19 11:43:16
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Detection Method:
Check the installed hotfixes

Recommendations:
Apply the hotfix referenced in the advisory

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 Versions:
These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including Citrix XenServer 7.0.

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2016-7092
https://nvd.nist.gov/vuln/detail/CVE-2016-7093
https://nvd.nist.gov/vuln/detail/CVE-2016-7094
https://nvd.nist.gov/vuln/detail/CVE-2016-7154

CVE Analysis

https://www.mageni.net/cve/CVE-2016-7092
https://www.mageni.net/cve/CVE-2016-7093
https://www.mageni.net/cve/CVE-2016-7094
https://www.mageni.net/cve/CVE-2016-7154

References:

http://support.citrix.com/article/CTX216071

Severity
High
CVSS Score
7.2
Published
2016-09-19
Modified
2018-11-20
Category
Citrix Xenserver Local Security Checks

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