SecurityTracker.com
Keep Track of the Latest Vulnerabilities
with SecurityTracker!
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 
Sign Up
Sign Up for Your FREE Weekly SecurityTracker E-mail Alert Summary
Instant Alerts
Buy our Premium Vulnerability Notification Service to receive customized, instant alerts
Affiliates
Put SecurityTracker Vulnerability Alerts on Your Web Site -- It's Free!
Partners
Become a Partner and License Our Database or Notification Service
Report a Bug
Report a vulnerability that you have found to SecurityTracker
bugs
@
securitytracker.com






Category:   Application (Generic)  >   Xen Vendors:   Xen Project
Xen Register Operand Processing Error Lets Local Users on a Guest System Gain Elevated Privileges on the Host System
SecurityTracker Alert ID:  1037346
SecurityTracker URL:  http://securitytracker.com/id/1037346
CVE Reference:   CVE-2016-9383   (Links to External Site)
Date:  Nov 25 2016
Impact:   Execution of arbitrary code via local system, Modification of system information, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.4.x, 4.5.x, 4.6.x, 4.7.x
Description:   A vulnerability was reported in Xen. A local user on the guest system can gain elevated privileges on the host system.

A local user on the guest system can supply a specially crafted memory operand and source register value to the BT, BTC, BTR, and BTS x86 instructions to execute arbitrary code on the system with host system privileges.

x86 guests running in 64-bit mode are affected.

ARM systems are not affected.

George Dunlap of Citrix reported this vulnerability.

Impact:   A local user on the guest system can gain elevated privileges on the host system.
Solution:   The vendor has issued a fix (xsa195.patch).

The vendor advisory is available at:

http://xenbits.xen.org/xsa/advisory-195.html

Vendor URL:  xenbits.xen.org/xsa/advisory-195.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any)

Message History:   None.


 Source Message Contents



[Original Message Not Available for Viewing]


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

Copyright 2017, SecurityGlobal.net LLC