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TITLE:
Microsoft Windows Kernel Denial of Service and Privilege Escalation

SECUNIA ADVISORY ID:
SA40871

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40871/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40871

RELEASE DATE:
2010-08-11

DISCUSS ADVISORY:
http://secunia.com/advisories/40871/#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/40871/

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=40871

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:
Some vulnerabilities have been reported in Microsoft Windows, which
can be exploited by malicious, local users to cause a DoS (Denial of
Service) or gain escalated privileges.

1) A race condition error in the kernel when handling certain thread
creation attempts may allow execution of arbitrary code in kernel
mode.

2) A double-free error in the kernel when initialising objects while
handling certain errors may allow execution of arbitrary code in
kernel mode.

3) An error in the kernel when validating access control lists on
kernel objects can be exploited to cause a vulnerable system to
become unresponsive and restart.

NOTE: Windows XP Professional x64 Edition SP2 is not affected by any
of the vulnerabilities.

SOLUTION:
Apply patches.

Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Tavis Ormandy, Google.

ORIGINAL ADVISORY:
MS10-047 (KB981852):
http://www.microsoft.com/technet/security/bulletin/MS10-047.mspx

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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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.

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