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TITLE:
Microsoft Windows Kernel-Mode Drivers Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA49436

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49436/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49436

RELEASE DATE:
2012-06-12

DISCUSS ADVISORY:
http://secunia.com/advisories/49436/#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/49436/

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=49436

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:
Multiple vulnerabilities have been reported in Windows, which can be
exploited by malicious, local users to gain escalated privileges.

1) An error in win32k.sys within the string atom class name handling
can be exploited to execute arbitrary code with kernel-mode
privileges.

2) An error in win32k.sys within the string atom class name handling
can be exploited to execute arbitrary code with kernel-mode
privileges.

3) An error in win32k.sys within the clipboard format atom name
handling can be exploited to execute arbitrary code with kernel-mode
privileges.

4) An integer overflow error when handling the reference counter for
font resources when loading TrueType fonts can be exploited to
execute arbitrary code with kernel-mode privileges.

5) A race condition error in win32k.sys when handling particular
thread creation attempts can be exploited to execute arbitrary code
with kernel-mode privileges.

SOLUTION:
Apply patches.

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

PROVIDED AND/OR DISCOVERED BY:
1-3) The vendor credits Tarjei Mandt, Azimuth Security.
4) The vendor credits Mateusz "j00ru" Jurczyk, Google Inc.
5) Reported by the vendor.

ORIGINAL ADVISORY:
MS12-041 (KB2709162):
http://technet.microsoft.com/en-us/security/bulletin/MS12-041

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/

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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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Definitions: (Criticality, Where etc.)
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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.

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