----------------------------------------------------------------------


Join Secunia @ FIRST Conference, 12-17 June, Hilton Vienna, Austria
See to the presentation "The Dynamics and Threats of End-Point Software Portfolios" by Secunia's Research Analyst Director, Stefan Frei.
Read more:
http://conference.first.org/ 


----------------------------------------------------------------------

TITLE:
Microsoft Windows Hyper-V VMBus Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA44908

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44908/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44908

RELEASE DATE:
2011-06-15

DISCUSS ADVISORY:
http://secunia.com/advisories/44908/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/44908/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=44908

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in Microsoft Windows, which can be
exploited by malicious, local users to cause a DoS (Denial of
Service).

The vulnerability is caused due to a validation error when processing
certain machine instructions. This can be exploited to cause the
Hyper-V server and all guest virtual machines to stop responding via
a specially crafted packet sent to the VMBus communication channel.

Successful exploitation requires local logon privileges within a
guest virtual machine.

SOLUTION:
Apply patches.

Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Nicolas Economou, Core Security Technologies.

ORIGINAL ADVISORY:
MS11-047 (KB2525835):
http://www.microsoft.com/technet/security/Bulletin/MS11-047.mspx

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

----------------------------------------------------------------------