Citrix XenServer Multiple Security Updates (CTX200288)

Published: 2014-12-18 16:37:46
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:A/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. 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 Versions:
These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including Citrix XenServer 6.2 Service Pack 1.

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-2014-8595
https://nvd.nist.gov/vuln/detail/CVE-2014-8866
https://nvd.nist.gov/vuln/detail/CVE-2014-8867
https://nvd.nist.gov/vuln/detail/CVE-2014-1666

References:

http://support.citrix.com/article/CTX200288

Severity
High
CVSS Score
8.3
Published
2014-12-18
Modified
2018-10-12
Category
Citrix Xenserver Local Security Checks

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