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TITLE:
Microsoft Windows Kernel-Mode Drivers Three Vulnerabilities

SECUNIA ADVISORY ID:
SA39655

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/39655/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=39655

RELEASE DATE:
2010-06-09

DISCUSS ADVISORY:
http://secunia.com/advisories/39655/#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/39655/

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=39655

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:
Three vulnerabilities have been reported in Microsoft Windows, which
can be exploited by malicious, local users to gain escalated
privileges and by malicious people to potentially compromise a user's
system.

1) A boundary error in win32k.sys when providing a TrueType glyph
outline can be exploited to cause a buffer overflow when viewing
content rendered in a specially crafted TrueType font.

Successful exploitation may allow execution of arbitrary code if a
user e.g. views a malicious web page using certain versions of Opera
browser. Other applications may also provide valid, remote attack
vectors.

2) Insufficient validation of changes in certain kernel objects can
be exploited to potentially run code in kernel-mode, allowing
privilege escalation.

3) Insufficient validation of all callback parameters when creating
new windows can be exploited to run code in kernel-mode, allowing
privilege escalation.

SOLUTION:
Apply patches.

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

PROVIDED AND/OR DISCOVERED BY:
1) Publicly discussed as a bug in Opera 10.5. Additional information
provided by Secunia Research.
2) The vendor credits Sebastien Renaud, Vupen.
3) Reported by the vendor.

ORIGINAL ADVISORY:
MS10-032 (KB979559):
http://www.microsoft.com/technet/security/bulletin/ms10-032.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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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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