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 x86 Null Segment Access Control Bug Lets Local Users on a Guest System Gain Elevated Privileges on the Guest System
SecurityTracker Alert ID:  1037340
SecurityTracker URL:  http://securitytracker.com/id/1037340
CVE Reference:   CVE-2016-9386   (Links to External Site)
Date:  Nov 24 2016
Impact:   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 guest system.

A local unprivileged user on the guest system can exploit a flaw in the x86 emulator in controlling access to null user data segments to gain elevated privileges on the guest system.

HVM guests are affected

ARM systems are not affected.

Andrew Cooper of Citrix reported this vulnerability.

Impact:   A local user on the guest system can gain elevated privileges on the guest system.
Solution:   The vendor has issued a fix (xsa191-4.6.patch, xsa191.patch).

The vendor advisory is available at:

http://xenbits.xen.org/xsa/advisory-191.html

Vendor URL:  xenbits.xen.org/xsa/advisory-191.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