SecurityTracker.com
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 


Category:   Application (Generic)  >   Citrix XenServer Vendors:   Citrix
(Citrix Issues Fix for Citrix XenServer) Xen Use-After-Free in EVTCHNOP_init_control Lets Local Administrative Users on a Guest System Cause Denial of Service Conditions on the Host System
SecurityTracker Alert ID:  1036818
SecurityTracker URL:  http://securitytracker.com/id/1036818
CVE Reference:   CVE-2016-7154   (Links to External Site)
Date:  Sep 15 2016
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6.0 - 7.0
Description:   A vulnerability was reported in Xen. A local administrative user on the guest system can cause denial of service conditions on the host system. Citrix XenServer is affected.

A local administrative user on the guest system can supply a specially crafted frame number to the EVTCHNOP_init_control() function to trigger a use-after-free and cause denial of service conditions on the host system.

A user may also be able to gain elevated privileges on the host system.

Mikhail Gorobets of Advanced Threat Research, Intel Security, reported this vulnerability.

Impact:   A local user on the guest system can cause denial of service conditions on the host system.
Solution:   Citrix has issued a fix for CVE-2016-7154 for Citrix XenServer.

7.0: CTX216463
6.5 SP1: CTX216462
6.2 SP1: CTX216461
6.1: CTX216460
6.0.2: CTX216458
6.0.2 Common Criteria: CTX216459
6.0: CTX216457

The Citrix advisory is available at:

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

Vendor URL:  support.citrix.com/article/CTX216071 (Links to External Site)
Cause:   Access control error

Message History:   This archive entry is a follow-up to the message listed below.
Sep 9 2016 Xen Use-After-Free in EVTCHNOP_init_control Lets Local Administrative Users on a Guest System Cause Denial of Service Conditions on the Host System



 Source Message Contents



[Original Message Not Available for Viewing]


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

This web site uses cookies for web analytics. Learn More

Copyright 2020, SecurityGlobal.net LLC