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

SecurityTracker
Archives


 


Category:   Application (Generic)  >   Xen Vendors:   Xen Project
Xen Heap Overflow in PC-Net II Emulator Lets Local Users on a Guest System Gain Elevated Privileges on the Host System
SecurityTracker Alert ID:  1034268
SecurityTracker URL:  http://securitytracker.com/id/1034268
CVE Reference:   CVE-2015-7504   (Links to External Site)
Date:  Nov 30 2015
Impact:   Execution of arbitrary code via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.3.x, 4.4.x, 4.5.x, 4.6.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 that has access to an emulated AMD PC-Net II network device can trigger a heap overflow to execute arbitrary code with the privileges of the target QEMU process.

Systems running x86 HVM guests without stubdomains and that are configured to use the PCNET emulated drivers are affected.

The default configuration is not affected.

Systems running only PV guests are not affected.

ARM systems are not affected.

Qinghao Tang of the Qihoo 360 Marvel Team reported this vulnerability.

Impact:   A local user on the guest system can gain QEMU privileges on the host system.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

http://xenbits.xen.org/xsa/advisory-162.html

Vendor URL:  xenbits.xen.org/xsa/advisory-162.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Dec 22 2015 (Red Hat Issues Fix for QEMU) Xen Heap Overflow in PC-Net II Emulator Lets Local Users on a Guest System Gain Elevated Privileges on the Host System
Red Hat has issued a fix for QEMU for Red Hat Enterprise Linux 6.



 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 2019, SecurityGlobal.net LLC