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Citrix XenServer Multiple Security Updates (CTX202404)

Information

Severity

Severity

High

Family

Family

Citrix Xenserver Local Security Checks

CVSSv2 Base

CVSSv2 Base

7.2

CVSSv2 Vector

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

8 years ago

Modified

Modified

5 years ago

Summary

A number of security vulnerabilities have been identified in Citrix XenServer that may allow a malicious administrator of a guest VM to compromise the host and guest users to crash the host. These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including Citrix XenServer 6.5 Service Pack 1. The following vulnerabilities have been addressed: CVE-2015-7835 (High): Uncontrolled creation of large page mappings by PV guests CVE-2015-7969 (Low): Leak of main per-domain vcpu pointer array/Leak of per-domain profiling-related vcpu pointer array CVE-2015-7970 (Medium): Host crash when migrating a PoD VM CVE-2015-7971 (Low): Some pmu and profiling hypercalls log without rate limiting CVE-2015-7972 (Low): Populate-on-demand balloon size inaccuracy can crash guests

Affected Software

Affected Software

Citrix XenServer up to and including Citrix XenServer 6.5 Service Pack 1

Detection Method

Detection Method

Check the installed hotfixes

Solution

Solution

Apply the hotfix referenced in the advisory.

Common Vulnerabilities and Exposures (CVE)